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• Christian union -- England
• Christian union -- Scotland

• Divisions in the church : two sermons preached in Tewkesbury Abbey on Sunday, September 14, 1902 / Talbot collection of British pamphlets (Longmans, Green and Co., 39 Paternoster Row, 1902), by W. Sanday (page images at HathiTrust)
• Shepherds and sheep. (Longman, Brown, Green and Longmans, 1851), by William Dyce and John Ruskin (page images at HathiTrust)
• Catholick communion defended against both extreams, and unnecessary division confuted in five parts ... / by Richard Baxter ... (London : Printed for Tho. Parkhurst ..., 1684), by Richard Baxter (HTML at EEBO TCP)
• Catholick communion doubly defended by Dr. Owens, vindicator, and Richard Baxter and the state of that communion opened, and the questions discussed, whether there be any displeasure at sin, or repentance for it in Heaven : with a parallel of the case of using a faulty translation of Scripture, and a faulty lyturgy. (London : Printed for Thomas Parkhurst ..., 1684), by Richard Baxter (HTML at EEBO TCP)
• The true and only way of concord of all the Christian churches the desirableness of it, and the detection of false dividing terms / opened by Richard Baxter. (London : Printed for John Hancock ..., 1680), by Richard Baxter (HTML at EEBO TCP)

• The way to peace among all Protestants : being a letter of reconciliation sent by Bishop Ridley to Bishop Hooper. (Seeley, Burnside, and Seeley, 1846), by Samuel Johnson and Nicholas Ridley (page images at HathiTrust)
• The way to peace among all Protestants : being a letter of reconciliation sent by Bp. Ridley to Bp. Hooper with some observations upon it. (Printed for Richard Baldwin, 1688), by Samuel Johnson and Nicholas Ridley (page images at HathiTrust)

• Certaine considerations shewing the necessity of a correspondencie in spirituall matters betwixt all Protestant churches an especiall meanes for effecting whereof and healing our present breaches would be a nationall synod / by John Dury. ([London] : Printed for Wil. Hope, 1642), by John Dury (HTML at EEBO TCP)
• A petition to the Honourable House of the Commons in England now assembled in Parliament whereunto are added certaine considerations shewing the necessity of a correspondencie in spirituall matters betwixt all Protestant churches by John Dury. (London : Printed for William Hope ..., 1642), by John Dury (HTML at EEBO TCP)
• An humble remonstrance in the behalfe of the Protestants of this kingdome, for setling the present distractions in religion, by a nationall synod With the names of the divines appointed and approved of by the Parliament to be consulted with in the nationall synod, for setling of religion, and reformation of church-government. (London : printed for R. Johnson, 1643) (HTML at EEBO TCP)

• Inter-university Christian Union : origin and present position, January, 1895 (Inter-university Christian Union, 1895), by Donald Fraser (page images at HathiTrust)

• Two papers upon the relations of the English church to nonconformity. Talbot collection of British pamphlets (W. Wells Gardner, 2, Paternoster Buildings, London, E.C.; and at the office of the society: 7, Whitehall, London, S.W., 1877), by Home Reunion Society (page images at HathiTrust)
• Church concord containing I. a disswasive from unnecessary division and separation, and the real concord of the moderate independents with the Presbyterians, instanced in ten seeming differences, II. by Richard Baxter. (London : Printed for Tho. Parkhurst ..., 1691), by Richard Baxter (HTML at EEBO TCP)
• Schism detected in both extreams, or, Two sorts of sinful separation the first part detecteth the schismatical principles of a resolver of three cases about church-communion, the second part confuteth the separation pleaded for in a book famed to be written by Mr. Raphson. (London : Printed for Tho. Parkhurst ..., 1684), by Richard Baxter (HTML at EEBO TCP)
• The country's concurrence with the London united ministers in their late heads of agreement shewing the nature and advantages of a general union among Protestants : in two discourses ... / by Samuel Chandler ... (London : Printed for John Dunton ... and John Salusbury ..., 1691), by Samuel Chandler (HTML at EEBO TCP)
• Petition to the Honourable House of Commons in England now assembled in Parliament (London : [s.n.], Printed in the yeere M.DC.XLI. [1641]), by John Dury (HTML at EEBO TCP)
• Heads of agreement assented to by the united ministers in and about London, formerly called Presbyterian and Congregational: (Edinburgh : Re-printed by the Heir of Andrew Anderson ..., Anno Dom. 1691), by John Howe (HTML at EEBO TCP)
• An essay to ecclesiastical reconciliation humbly offered to the consideration of all peaceable and good Christians / by a lover of peace. (London : [s.n.], 1686), by Lover of peace (HTML at EEBO TCP)
• A vindication of the late reverend and learned John Owen D.D. by a friendly scrutiny into the merits, and manner of Mr. Rich. Baxters opposition to twelve arguments concerning worship by the lyturgy, said to be Dr. Owens / by a hearty friend to all good men, and of the unity of the spirit in the bond of peace. (London : Printed for Thomas Malthus ..., 1684), by Hearty friend to all good men (HTML at EEBO TCP)

• Heads of agreement assented to by the united ministers in and about London, formerly called Presbyterian and Congregational (London : Printed by R.R. for Tho. Cockerill ... and John Dunton ..., 1691), by John Howe (HTML at EEBO TCP)

• Historical papers submitted to the Christian Unity Association of Scotland, by its Special Committee, 1911-1913. ([Edinburgh] : Privately printed by T. and A. Constable, 1914., 1914), by R. W. Weir, Thomas F. Torrance Collection (Princeton Theological Seminary), and Christian Unity Association of Scotland (page images at HathiTrust; US access only)

• The union question (s.n., in the 1870s), by John Kennedy (page images at HathiTrust)

Items below (if any) are from related and broader terms.

• Catholicity and the Vincentian Rule, by Charles C. Grafton (HTML at anglicanhistory.org)
• Christian Brotherhood: A Letter to the Hon. Heman Lincoln (Boston: Gould and Lincoln; et al., 1859), by Baron Stow
  • multiple formats at archive.org
  • page images at HathiTrust
• Christian Union: A Historical Study (St. Louis: Christian Pub. Co., c1906), by J. H. Garrison (page images at HathiTrust)
• Christian Unity and its Recovery (New York: D. Appleton and Co., 1866), by John Sidney Davenport
  • multiple formats at archive.org
  • page images at HathiTrust
• An Exhortation to Peace and Unity (sometimes attributed to John Bunyan) (Gutenberg text)
• Lectures on the Reunion of the Churches (New York: Pott, Young and Co., 1872), by Johann Joseph Ignaz von Döllinger, trans. by Henry Nutcombe Oxenham
  • multiple formats at archive.org
  • page images at HathiTrust
• A New Rome: A Study of Visible Unity Among Non-Papal Christians (London et al.: Longmans, Green and Co., 1911), by Richard De Bary
  • multiple formats at Google; US access only
  • multiple formats at archive.org
  • page images at HathiTrust; US access only
• Notes on the Construction of Sheepfolds (New York: J. Wiley, 1851), by John Ruskin (page images at HathiTrust)
• Sermons on the Failure of Protestantism, and on Catholicity (New York: D. Appleton, 1869), by Ferdinand C. Ewer
  • multiple formats at Google
  • page images at HathiTrust
• The Church of the Redeemer, As Developed within the General Synod of the Lutheran Church in America, by S. S. Schmucker (page images at MOA)
• Paris, capitale des religions; ou, La mission d'Israël. (A. Michel, 1927), by Jean Bernard Joachim Izoulet (page images at HathiTrust; US access only)
• Le cardinal Bessarion (1403-1472) étude sur le chrétienté et la renaissance vers le milieu du XVe siècle / par Henri Vast. (Hachette et cie, 1878), by Henri Vast (page images at HathiTrust)
• The doctrine of the church and Christian reunion : being the Bampton lectures for the year 1920 / by Arthur C. Headlam. (J. Murray, 1920), by Arthur C. Headlam (page images at HathiTrust)
• Protestantism in the United States (Thomas Y. Crowell Company, 1929), by Archer Bryan Bass (page images at HathiTrust)
• Toward a world Christian fellowship. (Association Press, 1943), by Kenneth Scott Latourette (page images at HathiTrust)
• National perils and opportunities; the discussions of the General Christian Conference held in Washington, D. C., December 7th, 8th, and 9th, 1887, under the auspices and direction of the Evangelical Alliance for the United States. (Baker & Taylor Co., 1887), by 1st Evangelical Alliance for the United States of America. General Christian Conference (page images at HathiTrust)
• Christian unity: its principles and possibilities. (Association Press, 1921), by Committee on the War and the Religious Outlook (page images at HathiTrust)
• The manual of inter-church work (Commission on inter-church federations of the Federal council of the churches of Christ in America, 1917), by Federal Council of the Churches of Christ in America. Commission on Inter-church Federations, Roy Bergen Guild, Pa.) Congress on the Purpose and Methods of Inter-Church Federations (1917 : Pittsburgh, and Congress on the purpose and methods of inter-church federations (1917 : Pittsburgh) (page images at HathiTrust)
• United churches (New York : George H. Doran, [1926], 1926), by Elizabeth R. Hooker (page images at HathiTrust)
• The reunion of the churches; a study of G. W. Leibnitz and his great attempt. (Constable, 1927), by George Jefferis Jordan (page images at HathiTrust; US access only)
• The call to unity; the Bedell lectures for 1919 delivered at Kenyon college, May 24th and 25th, 1920 (The Macmillan company, 1920), by William Thomas Manning (page images at HathiTrust)
• Passing Protestantism and coming Catholicism (Scribner, 1908), by Newman Smyth (page images at HathiTrust)
• The conversations at Malines, 1921-1925. (Oxford university press, H. Milford, 1928) (page images at HathiTrust; US access only)
• The sevenfold unity of the Christian church. (Longmans, Green, and co., 1911), by A. C. A. Hall (page images at HathiTrust)
• Church union in Canada : its causes and consequences / by Claris Edwin Silcox. (Institute of Social and Religious Research, 1933), by Claris Edwin Silcox and Institute of Social and Religious Research (page images at HathiTrust)
• Système religieux de Leibnitz (A. Le Clere et cie, 1846), by Gottfried Wilhelm Leibniz, Pierre Lacroix, and Albert de Broglie (page images at HathiTrust)
• Exposition de la doctrine de Leibnitz sur la religion (ouvrage latin inédit, et tr. en françois) avec un nouveau choix de Pensées sur la religion et la morale, extraites des ouvrages du mème auteur par m. Emery ... (Tournachon-Molin et H. Seguin [etc.], 1819), by Gottfried Wilhelm Leibniz and Jacques André Emery (page images at HathiTrust)
• Prize essay on religious dissensions. (Gould and Newman, 1838), by Pharcellus Church (page images at HathiTrust)
• An attempt to explain the words: reason, substance, person, creeds, orthodoxy, Catholic-church, subscription, and Index expurgatorius. To which are added, some reflections, miscellaneous observations, quotations, and queries, on the same subjects. (Printed for W. Johnston, 1766), by William Robertson (page images at HathiTrust)
• Bericht über die am 14., 15. und 16. September zu Bonn gehaltenen Unions-Conferenzen, im Auftrage des Vorsitzenden Dr. von Döllinger (P. Neusser, 1874), by Germany) Reunion Conference (1874 : Bonn and F. H. Reusch (page images at HathiTrust)
• The new affinities of faith a plea for Free Christian Union (Williams & Norgate, 1869), by James Martineau (page images at HathiTrust)
• Dogmaticheskoe razvitie t͡serkvi v svi͡azi s voprosom o soedinenii t͡serkveĭ. (V Universitetskoĭ tipografii, 1886), by Vladimir Sergeevich Solevʹev (page images at HathiTrust)
• Church unity : five lectures delivered in the Union Theological Seminary, New York, during the winter of 1896 (Scribner's, 1896), by Charles W. Shields and N.Y.) Union Theological Seminary (New York (page images at HathiTrust)
• The church of the Redeemer, as developed within the General synod of the Lutheran church in America With a historic outline from the apostolic age. To which is appended a plan for restoring apostolic union between all orthodox denominations. (T. N. Kurtz, 1868), by S. S. Schmucker (page images at HathiTrust)
• L'unité dans le Christ. (Pontificio istituto orientale, 1923), by Michel d' Herbigny (page images at HathiTrust; US access only)
• Miutʻenakan hartsʻ ew Shnorhali : patmakʻnnakan tesutʻiwn (880-03 Marzuan : Tparan Nersō ew Srapean, 1909., 1909), by Artawazd Galēntērean (page images at HathiTrust; US access only)
• The Old Catholic churches and reunion. (London, Society for Promoting Christian Knowledge; New York, Macmillan Co., 1927., 1927), by C. B. Moss (page images at HathiTrust; US access only)
• National needs and remedies (Baker & Taylor Co., 1890), by Mass.) Evangelical Alliance for the United States of American. General Christian Conference 1889 : Boston (page images at HathiTrust)
• Christian unity : the truth of it as presented in the teaching of Christ and His apostles ; an examination of its character, principles of action, and way of realization (Publication Office "Our Hope", 1900), by John Bloore (page images at HathiTrust)
• The new order in the church. (Abingdon-Cokesbury Press, 1943), by William Adams Brown (page images at HathiTrust)
• "Christian unity"; a sermon preached by Bishop James W. Bashford before the general conference of the Methodist Episcopal Church at Saratoga Springs, N. Y., on May 14, 1916. ([S.l. : s.n], 1916), by James Whitford Bashford (page images at HathiTrust; US access only)
• A new approach to Christian unity (Warner Press, 1931), by Charles Ewing Brown (page images at HathiTrust)
• Are there too many churches in our town? A discussion outline. (The Inquiry, 1928) (page images at HathiTrust)
• The story of the World Council of Churches. (American Committee for the World Council of Churches, 1947), by Paul Griswold Macy (page images at HathiTrust)
• The coming great church; essays on church unity (The Macmillan company, 1945), by Theodore Otto Wedel (page images at HathiTrust)
• Lambeth and unity (Morehouse-Gorham Co., 1948), by Louis August Haselmayer, Joint Committee on Doctrine of the American Church Union and the Clerical Union for the Maintenance and Defense of Catholic Principles, and American Church Union (page images at HathiTrust)
• Patriarch Cyrillus Lucaris und seine Zeit. (J.J. Lentner, 1862), by A. Pichler (page images at HathiTrust)
• The Christian way toward unity (The Secretariat, 1925), by Charles Henry Brent and World Conference on Faith and Order (1st : 1927 : Lausanne) (page images at HathiTrust)
• Church union in Canada; its history, motives, doctrine and government. (T. Allen, 1923), by Ernest Lloyd Morrow (page images at HathiTrust)
• Die kirchlichen reunionsverhandlungen in der zweiten hälfte des 17. jahrhunderts; Ernst August von Hannover und die Katholische kirche (W. Regenberg, 1922), by Philipp Hiltebrandt (page images at HathiTrust; US access only)
• The coming church : a plea for a church simply Christian (Williams & Norgate, 1905), by John Hunter (page images at HathiTrust)
• Die einheit der kirche nach dem H. Augustinus ... (Griessmayersche buchdr., 1885), by Thomas Specht (page images at HathiTrust)
• Theoduls Gastmahl; oder, Über die Vereinigung der verschiedenen christlichen Religions-societäten ... (L. Reinherz, 1828), by Johann August Starck (page images at HathiTrust)
• The unity of the Church. (Murray, 1842), by Henry Edward Manning (page images at HathiTrust)
• Christianity practically applied (Baker & Taylor, 1894), by International Christian Conference (1893 : Chicago), Chicago Evangelical Alliance for the United States of America. Conference, and World's Columbian Exposition (1893 : Chicago) World's Congress Auxiliary (page images at HathiTrust)
• Problems of church unity (London ; New York [etc.] : Longmans, Green and co., 1924., 1924), by Walter Lowrie (page images at HathiTrust; US access only)
• Christliche Sekten und Kirche Christi. (Joseph Giesel, 1925), by Konrad Algermissen (page images at HathiTrust; US access only)
• An eirenic itinerary : impressions of our tour, with addresses and papers on the unity of Christian churches (Longmans, Green, 1911), by Silas McBee (page images at HathiTrust)
• The relations of the Anglican churches with the Eastern-Orthodox, especially in regard to Anglican orders (Faith Press, 1921), by John Albert Douglas (page images at HathiTrust; US access only)
• The History and teachings of the early church as a basis for the re-union of Christendom : lectures delivered in 1888, under the auspices of the Church Club, in Christ Church, N.Y. (E. & J. B. Young, 1892), by A. Cleveland Coxe and Church Club of New York (page images at HathiTrust)
• Reunion essays : with an appendix on the non-infallible dogmatic force of the Bull Apostolicæ Curæ of Pope Leo XIII in condemnation of the holy orders of the Church of England (Longmans, Green, 1903), by W. R. Carson (page images at HathiTrust; US access only)
• Chapters from my life, with special reference to reunion (Cassell and company, ltd., 1918), by Henry S. Lunn (page images at HathiTrust)
• The primitive church and reunion : papers reprinted from the Contemporary review (University Press, 1913), by W. Sanday (page images at HathiTrust)
• The peace of the church. (C. Scribner's Sons, 1899), by William Reed Huntington (page images at HathiTrust)
• The problem of Christian unity. (The Macmillan company, 1921), by Christian Unity Foundation (page images at HathiTrust)
• The Penscellwood papers : comprising essays on the souls and future life of animals, on capital punishments, on the Evangelical Alliance, on the endowment of the Protestant and Roman Catholic churches of Ireland, and on the education of the people (R. Bentley, 1846), by Robert Armitage (page images at HathiTrust)
• Theoduls Gastmahl oder über die Vereinigung der verschiedenen christlichen Religions-Societäten. (Hermann, 1821), by Albert Le Roy (page images at HathiTrust)
• Other sheep I have (G.P. Putnam's sons, 1911), by Theodore Christian Knauff (page images at HathiTrust; US access only)
• An appeal for unity in faith : being an appeal to Anglicans (Protestant Episcopalians) and Protestants of other denominations to return to the unity of the faith (M.A. Donohue & Co., 1911), by John Phelan (page images at HathiTrust)
• The English church and reunion. (E.S. Gorham, 1916), by Arthur Chandler (page images at HathiTrust)
• The divided house (Boston : Gorham ; Toronto : Copp Clark, [1917], 1917), by Edwin E. Rogers (page images at HathiTrust; US access only)
• From chaos to catholicism (Macmillan, 1920), by William George Peck (page images at HathiTrust)
• The Christian confederacy (Goodspeed Press, 1915), by Herbert Booth (page images at HathiTrust)
• Basis of true Christian unity. (Wells Gardner, 1888), by S. Kettlewell (page images at HathiTrust)
• The papal supremacy and the provincial system tested by The Holy Scriptures and the Canon Law of the Ancient Church, with a plea for church unity. (J. Pott and co., 1889), by W. D. Wilson (page images at HathiTrust)
• Ueber die Wiedervereinigung der christlichen Kirchen : sieben vorträge, gehalten zu München im Jahr 1872 (C. H. Beck'schen, 1888), by Johann Joseph Ignaz von Döllinger (page images at HathiTrust)
• Some thoughts on Christian reunion : being seven addresses given during his visitation in June, 1895 (Macmillan, 1895), by William Boyd Carpenter (page images at HathiTrust)
• A contribution to the cause of Christian unity, or, The thoughts of an Indian missionary on the controversies of the day (London : J.T. Hayes, [1879?], 1879), by Simeon Wilberforce O'Neill (page images at HathiTrust)
• Lectures on Christian unity : delivered in S. Ann's Church, eigth-street, during the season of Advent, 1866 ; with an appendix on the condition of the Anglican communion and of the Eastern Churches (D. and J. Sadlier, 1867), by T. S. Preston (page images at HathiTrust)
• The question of unity; many voices concerning the unification of Christendom. (Christian Literature Co., 1894), by Amory H. Bradford (page images at HathiTrust)
• The cry of Christendom, for a divine eirenikon. A plea with all the churches, for the rights of the people; Christianity and peace. (R. D. Dickinson, 1889) (page images at HathiTrust)
• Denominationalism vs. Christian union (Fleming H. Revell co., 1891), by Tennis S. Hamlin (page images at HathiTrust)
• That they all may be one (Funk & Wagnalls company, 1905), by Amos R. Wells (page images at HathiTrust; US access only)
• A manual of modern church history. (C.H. Kelly, 1895), by W. F. Slater (page images at HathiTrust)
• Gedanken eines Protestanten über die päpstliche Einladung zur Wiedervereinigung mit der römisch-katholischen Kirche (G.J. Manz, 1868), by Reinhold Baumstark (page images at HathiTrust)
• The union of the churches (Phillips & Hunt, 1880), by John H. Brunner (page images at HathiTrust)
• "That they all may be one"; a plea for the reunion of Christians (Franklin Press, 1908), by Jacob Cecil Hales (page images at HathiTrust)
• The banquet of Theodulus : or, the re-union of the different Christian communions (Kelly & Piet, 1868), by Paul Dumont and Johann August Starck (page images at HathiTrust)
• Unity and missions; can a divided church save the world? (Fleming H. Revell, 1915), by Arthur Judson Brown (page images at HathiTrust)
• The union of Christian forces in America (Philadelphia : American Sunday school union, [1915], 1915), by Robert A. Ashworth (page images at HathiTrust)
• Church reunion : discussed on the basis of the Lambeth propositions of 1888. (The Church Review, 1890), by Henry Mason Baum (page images at HathiTrust)
• The History and teachings of the early church as a basis for the re-union of Christendom. Lectures delivered in 1888, under the auspices of the Church Club, in Christ church, N.Y. (Young, 1890), by Church Club of New York (page images at HathiTrust)
• Histoire critique des projets formés depuis trois cents ans pour la réunion des communions chrétiennes. (Gauthier frères, 1824), by M. Tabaraud (page images at HathiTrust)
• Christian unity doctrinally and historically considered, in eight sermons preached before the University of Oxford, in the year MDCCCXVI, at the lecture founded by the Late Rev. John Bampton, M.A., Canon of Salisbury. (The University Press for the author; sold by J. Parker, 1817), by John Hume Spry (page images at HathiTrust)
• The Scriptural unity of the Protestant churches exhibited, in their published confessions. (John Robertson ... [etc.], 1835) (page images at HathiTrust)
• A national church (Scribner, 1897), by William Reed Huntington (page images at HathiTrust)
• Lectures on the reunion of the churches (Rivingtons, 1872), by Johann Joseph Ignaz von Döllinger (page images at HathiTrust)
• How to promote Christian union, an historical and practical handbook (The Standard Publishing Company, 1916), by Frederick D. Kershner (page images at HathiTrust)
• Sermons on the failure of Protestantism and on Catholicity (Edwin S. Gorham, 1917), by Ferdinand C. Ewer, William Harman Van Allen, and Morgan Dix (page images at HathiTrust)
• Die Wiedervereinigung der Lutheraner und Reformirten... Begleitet mit einer abhandlung über das abendmahl und die grundsätze der reformation... (Gedruckt bey H. Ebner u. comp., 1826), by Johannes August Probst and Johann Conrad. Jaeger (page images at HathiTrust)
• Letters of the most pious king, and of the most holy patriarchs (J.A. Gray & Green, 1865), by William C. King, Emperor of Russia Peter I, and Orthodox Eastern Church (page images at HathiTrust)
• Christian unity and the bishops' declaration : lectures delivered in 1895 under the auspices of the Church Club of New York. (New York : E. & J. B. Young, 1895., 1895) (page images at HathiTrust)
• An address delivered to members of the English Church Union at the forty-sixth annual meeting, June 27th, 1905 / Talbot collection of British pamphlets (Office of the English Church Union, 35, Wellington Street, Strand, W.C., 1905), by Charles Lindley Wood Halifax and English Church Union. meeting (46th : 1905) (page images at HathiTrust)
• Bishop Reinkens' speeches on Christian union and Old Catholic prospects : delivered in the congresses of Cologne and Constance : with a preface / Talbot collection of British pamphlets (Rivingtons, 1874), by Joseph Hubert Reinkens (page images at HathiTrust)
• Home reunion society. Talbot collection of British pamphlets (W. Wells Gardner, 2, Paternoster Buildings, London, E.C.; and at the office of the society: 7, Whitehall, London, S.W., 1878), by John Shelly, S. Reynolds Hole, and John Trevarthen (page images at HathiTrust)
• A lecture / Talbot collection of British pamphlets (W. Wells Gardner, 2, Paternoster Buildings, London, E.C.; and at the office of the society, 7, Whitehall, London, E.C., 1878), by Horatio Nelson Nelson (page images at HathiTrust)
• The true basis of Christian reunion : a paper read before the Durham Junior Clergy Society, Dec. 18th, 1894 / Talbot collection of British pamphlets ([s.n.], 1895), by Thomas B. Strong (page images at HathiTrust)
• Restatement and reunion; a study in first principles. (Macmillan, 1914), by Burnett Hillman Streeter (page images at HathiTrust)
• The communion of saints. An attempt to illustrate the true principles of Christian union: in eight lectures delivered before the University of Oxford, in the year MDCCCLI, on the foundation of the late Rev. John Bampton ... (W. Graham; [etc., etc.], 1851), by Henry Bristow Wilson (page images at HathiTrust)
• The work of the church on behalf of unity (by the Young churchman co., 1917), by Charles Palmerston Anderson (page images at HathiTrust)
• Lectures on Christian Unity (W. Briggs, 1899), by Herbert Symonds (page images at HathiTrust)
• The peace of the church (Charles Scribner's Sons, 1891), by William Reed Huntington (page images at HathiTrust)
• A pamphlet for the times; or, A treatise on Christian unity, as prayed for by Christ, and enjoined by his apostles : showing what it is, and where it can find a resting place in Christian England, with an address to seceders and chuchmen (T. Walesby;, 1846), by Fiennes Samuel Trotman (page images at HathiTrust)
• Impasse or opportunity? The situation after Lambeth. (Student Christian Movement, 1922), by Malcolm Spencer and Student Christian Movement (Great Britain) (page images at HathiTrust; US access only)
• The problem of reunion, discussed historically in seven essays. (Longmans, Green and Co., 1920), by Leslie Joseph Walker (page images at HathiTrust; US access only)
• The heavenly union, or New Jerusalem, on earth : its principles, practices, and persuasives, as applicable to our age (Perkins & Co., 1850), by William Henry Porter (page images at HathiTrust)
• Essays on Christian union. (Hamilton, Adams, & co.; [etc., etc.], 1845), by Thomas Chalmers (page images at HathiTrust)
• Christian reunion : a plea for the restoration of "The Ecclesia of God" (Hodder and Stoughton, 1908), by Frank Spence (page images at HathiTrust; US access only)
• Christian union; or, an argument for the abolition of sects (D. Appleton & co., 1835), by Abraham Van Dyck (page images at HathiTrust)
• Approaches towards church unity (Yale university press; [etc., etc.], 1919), by Newman Smyth and Williston Walker (page images at HathiTrust)
• Edinstvo vo Khristi︠e︡ (Tip. "Politika", 1922), by Michel d' Herbigny (page images at HathiTrust; US access only)
• The unity of the church as treated by English theologians (London : Society for Promoting Christian Knowledge, 1898., 1898), by T. A. Lacey (page images at HathiTrust)
• Unity and schism (A. R. Mowbray;, 1917), by T. A. Lacey (page images at HathiTrust)
• Encyclique de l'Eglise de Constantinople à toutes les églises du monde (Ek tou Patriarchikou Typographeiou, 1920), by Constantinople (Ecumenical patriarchate) (page images at HathiTrust; US access only)
• Union ou rapprochement des églises chrétiennes (Imprimerie "Estia", 1920), by Metropolitan of Helioupolis and Theira Gennadios (page images at HathiTrust; US access only)
• Church divisions and Christianity (Macmillan, 1916), by William Leighton Grane (page images at HathiTrust)
• Die kirchlichen Wiedervereinigungsbestrebungen der Nachkriegszeit : rede beim antritt des Rektorats der Ludwig-Maximilians-Universität München gehalten in der Aula am 25. November 1922 (F.A. Pfeiffer & Co., 1923), by Georg Pfeilschifter (page images at HathiTrust; US access only)
• Irenicum; a weapon salve for the church's wounds; or, The divine right of particular forms of church government, discussed and examined according to the principles of the law of nature, the positive laws of God, the practice of the Apostles, and the primitive church, and the judgment of reformed divines. Whereby a foundation is laid for the church's peace, and the accommodation of our present differences ... (M. Sorin, 1842), by Edward Stillingfleet (page images at HathiTrust)
• Christian unity. (The Catholic Book Exchange, 1895), by Morgan M. Sheedy (page images at HathiTrust)
• The churches at the cross-roads; a study in church unity (Williams and Norgate, 1918), by John Howard Shakespeare (page images at HathiTrust)
• Lectures on foreign churches : delivered in Edinburgh and Glasgow, May 1845, in connection with the objects of the Committee of the Free Church of Scotland on the state of Christian churches on the continent and in the East : first series. (Edinburgh : W.P. Kennedy, 1845., 1845), by Free Church of Scotland (page images at HathiTrust)
• Organized Christianity : or, New Testament unity demanded and feasible in the twentieth century (New York : Published by the author, 1908., 1908), by Kneeland Platt Ketcham (page images at HathiTrust)
• Church unity in Japan ... ([Tokyo?], 1914), by William Imbrie (page images at HathiTrust; US access only)
• An eirenic itinerary; impressions of our tour, with addresses and papers on the unity of Christian churches (Longmans, Green, 1911), by Silas McBee (page images at HathiTrust)
• How can local churches come together? A handbook of principles and methods (Committee on comity and cooperation, Home missions council, 1928), by Elizabeth R. Hooker (page images at HathiTrust)
• The war and unity, being lectures delivered at the Local lectures summer meeting of the University of Cambridge, 1918 (The University Press, 1919), by D. H. S. Cranage and University of Cambridge (page images at HathiTrust)
• Theodul' estvéi vagy a' különbözö : religiói-felek' egybe-engeszteléséről (Királyi Magyar Universitasnak betűivel, 1819), by Endre Horvát (page images at HathiTrust)
• Theoduls Gastmahl oder über die Vereinigung der verschiedenen christlichen Religions=Societäten. (Johann Christian Hermann, 1810), by Johann August von Stark (page images at HathiTrust)
• Friedens-Benehmen zwischen Bossuet, Leibnitz und Molan für die Wiedervereinigung der Katholiken und Protestanten : geschichtlich und kritisch beurtheilt (In des kommerzienraths J.E. Seidel Kunst und Buchhandlung, 1815) (page images at HathiTrust)
• Barátságos értekezés a vallási egyesülés ideájának szerzőjével. (Trattner, 1825), by Mátyás Kováts (page images at HathiTrust)
• Evangelical church. (Mercury, 1840), by Darwin H. Ranney (page images at HathiTrust)
• Essays on Christian union (Hamilton, Adams, 1845), by Thomas Chalmers (page images at HathiTrust)
• Catholic unity (J. Dobson, 1841), by Henry M. Mason (page images at HathiTrust)
• The History and teachings of the early church as a basis for the re-union of Christendom : lectures delivered under the auspices of the Church Club, in Christ Church, N.Y. (E. & J.B. Young, 1889), by A. Cleveland Coxe and Church Club of New York (page images at HathiTrust)
• The Catholic church in England and America. Three lectures; I. The church in England and America, apostolic and catholic. II. The causes of the English reformation. III. Its character and results (D. Appleton;, 1844), by John D. Ogilby and Book Traces Project (page images at HathiTrust)
• Popery : an enemy to scripture (British Society for Promoting the Religious Principles of the Reformation, 1850), by James Serces, Richard P. Blakeney, Isaac Barrow, and Pierre Mussard (page images at HathiTrust)
• A story of church unity (Yale university press;, 1923), by Newman Smyth and James Wesley Cooper Memorial Publication Fund (page images at HathiTrust; US access only)
• Christian unity and the gospel (Hodder and Stoughton, 1923) (page images at HathiTrust; US access only)
• The doctrine of the church and Christian reunion; being the Bampton lectures for the year 1920 (J. Murray, 1920), by Arthur C. Headlam (page images at HathiTrust; US access only)
• The shrine and the presence, spoken thoughts on the apostolic motto "In Christ" (R. Scott, 1913), by George Henry Somerset Walpole (page images at HathiTrust; US access only)
• K voprosu o "Soedinenīi t︠s︡erkveĭ" = (A propos de l'union des églises) (Tip. "Bratʹi︠a︡ Zellich,", 1922), by S. Bosforov (page images at HathiTrust; US access only)
• U skaly petrovoĭ = ("Pierre inébraniable") (Tip. "Bratʹi︠a︡ Zellich,", 1922), by A. Sipi︠a︡gin (page images at HathiTrust; US access only)
• Steps towards reunion, a statement for the Consultative Committee (Longmans, Green, 1914), by Lambeth Conference (1914), John Jamieson Willis, William George Peel, and Church of England (page images at HathiTrust; US access only)
• Divided church made one. (Gould, Kendall and Lincoln, 1838), by John Harris (page images at HathiTrust)
• Worte des Friedens an die katholische Kirche gegen ihre Vereinigung mit der protestantischen (Vandenhöck und Ruprecht, 1809), by G. J. Planck (page images at HathiTrust)
• The church of the Redeemer, as developed within the General Synod of the Lutheran Church in America : With a historic outline from the Apostolic age. To which is appended a plan for restoring apostolic union between all orthodox denominations (T. Newton Kurtz ;, 1867), by S. S. Schmucker (page images at HathiTrust)
• The church of the Redeemer, as developed within the General Synod of the Lutheran Church in America : with a historic outline from the apostolic age : to which is appended a plan for restoring apostolic union between all orthodox denominations (T. Newton Kurtz, 1868), by S. S. Schmucker (page images at HathiTrust)
• Bi xie ji shi : 3 juan, fu 1 juan ([n.p.], 1871), by active 1861-1862 Tianxiadiyishangxinren (page images at HathiTrust)
• The new affinities of faith: a plea for free Christian union ... (W.V. Spencer, 1869), by James Martineau (page images at HathiTrust)
• Essays on Christian union (Partridge and Oakley, and Hamilton, Adams, 1851), by J. H. Merle d'Aubigné and Thomas Chalmers (page images at HathiTrust)
• Nachträge über den Verfasser des Spruches: in necessariis unitas, in non necessariis libertas, in utrisque caritas : Nebst einigen Bermerkungen über die irensche Litteratur des siebenzehnten Jahrhunderts (s.n.], 1851), by Friedrich Lücke (page images at HathiTrust)
• L'Exclusisme considéré au point de vue de l'église protestante (Librairie de J. Cherbuliez, 1853), by Augustin Laurent Montandon (page images at HathiTrust)
• Church of England a portion of Christ's one holy catholic church, and a means of restoring visible unity. (John Henry and James Parker [distributor] :, 1865), by E. B. Pusey (page images at HathiTrust)
• Shepherds and sheep. (Longman, Brown, Green and Longmans, 1851), by William Dyce and John Ruskin (page images at HathiTrust)
• The church-idea; an essay toward unity (E.P. Dutton and Company, 1870), by William Reed Huntington (page images at HathiTrust)
• Soll die Scheidewand unter Katholiken und Protestanten noch länger fortbestehen? : ein Wort der Liebe an alle, welche die katholische Kirche nicht kennen, oder gar misskennen (Nicolaus Doll, 1820), by Augustus Bartholomaeus Hille (page images at HathiTrust)
• Incidental benefits of denominational division : an argument for Christian union. (Cincinnati : G.G. Jones, 1846., 1846), by B. P. Aydelott and Baptism Controversy Collection (Princeton Theological Seminary) (page images at HathiTrust)
• Short view of the plan of religious reformation originally adopted in the secession. (Printed for William Blackwood, 1821), by Thomas M'Crie (page images at HathiTrust)
• Die evangelische Union; ihr Wesen und göttliches Recht. (Wiegandt & Grieben, 1854), by Julius Müller (page images at HathiTrust)
• The Anglican theory of union : as maintained in the appeal to Rome and Dr. Pusey's "Eirenicon" a second letter to the clergy of the Diocese of Birmingham (Burns, Lambert and Oates, 1865), by William Bernard Ullathorne (page images at HathiTrust)
• Christ the universall peace-maker, or, The reconciliatoin of all the people of God : notwithstanding all their differences, enmities. (Printed by J. G. for R. Dawlman, 1651), by Thomas Goodwin (page images at HathiTrust)
• A discourse concerning evangelical love, church-peace, & unity. With the occasions & reasons to present differences and divisions about things sacred and religious. (Printed, and are to be sold by D. Newman, at the Kings-Armes in the Poultry, 1673), by John Owen (page images at HathiTrust)
• The reunion of Christendom (Catholic Truth Society, 1894), by Herbert Vaughan (page images at HathiTrust)
• The Union league club, a sequel to The Christian league of Connecticut [by Washington Gladden] (Christian Publishing Co., 1885), by R. E. Porter and Washington Gladden (page images at HathiTrust)
• Unity in the Church of Christ : sermon preached at Upsala Cathedral (s.n., 1909), by W. Rudin (page images at HathiTrust)
• Christianity practically applied : the discussions of the International Christian Conference held in Chicago, Oct. 8-14, 1893, in connection with the World's Congress Auxiliary of the World's Congress Auxiliary of the World's Columbian Exposition and under the auspices and direction of the Evangelical Alliance for the United States. (Baker & Taylor, 1894), by Ill.) International Christian Conference (1893 : Chicago, Evangelical Alliance for the United States of America, and Ill.). World's Congress Auxiliary World's Columbian Exposition (1893 : Chicago (page images at HathiTrust)
• Three lectures : 1. Wherein Israel has failed. 2. Wherein Christians have failed. 3. How both might succeed together. (Klonower, 1896), by Joseph Krauskopf (page images at HathiTrust)
• The reconstruction of the American church (R.G. Badger, 1919), by Walter M. Haushalter (page images at HathiTrust)
• The peace of the church (Charles Scribner's Sons, 1891), by William Reed Huntington (page images at HathiTrust)
• Pope John, the Council, and unity (Central Office, Chair of Unity Apostolate, 1961), by Titus Cranny and DeSales Standerwick (page images at HathiTrust)
• Federal Council bulletin. ([New York], 1918), by Federal Council of the Churches of Christ in America (page images at HathiTrust)
• Reginaldi Poli Cardinalis Britanni, Ad Henricu[m] Octauum Britanniæ Regem, pro ecclesiasticæ unitatis defensione, libri quatuor. (Apud Antonium Bladum Asulanum., 1536), by Reginald Pole (page images at HathiTrust)
• Communion of churches: or, The divine management of gospel-churches by the ordinance of councils, constituted in order according to the Scriptures. As also, the way of bringing all Christian parishes to be particular Reforming Congregationall churches: humbly proposed, as a way which hath so much light from the Scriptures of truth, as that it may lawfully be submitted unto by all; and may, by the blessing of the Lord, be a means of uniting those two holy and eminent parties, the Presbyterians and the Congregationals. As also to prepare for the hoped-for resurrection of the churches; and to propose a way to bring all Christian nations unto an unity of the faith and order of the gospel. (Printed by Marmaduke Johnson, 1665), by John Eliot (page images at HathiTrust)
• Week of prayer throughout the world, January 4-11, 1874 (s.n., 1873), by Evangelical Alliance. Nova Scotia Branch (page images at HathiTrust)
• Come home an appeal on behalf of reunion (Church of England Pub. Co., 1900), by J. Langtry (page images at HathiTrust)
• The Church of England, the centre of unity plea for union, addressed to churchmen and an enquiry into the causes why the Church of England has failed to be the unifier, with a suggestion as to the way of success (Morton, 1892), by Dyson Hague (page images at HathiTrust)
• One holy catholic and apostolic church five lectures preached in the Church of the Ascension, Hamilton (s.n.], 1887), by Hartley Carmichael (page images at HathiTrust)
• The centre of unity "The Church of England the centre of unity" by Rev. Dyson Haugue, M. A., reviewed (s.n.], 1892), by William Ryan and Dyson Hague (page images at HathiTrust)
• Lectures on Christian unity (W. Briggs, 1899), by Herbert Symonds (page images at HathiTrust)
• Principles of Christian union a sermon preached in Christ-Church Cathedral, Fredericton, 2nd September, 1853, being the Friday after its consecration (J. Simpson, 1853), by Theodore Edson (page images at HathiTrust)
• The prayer of Jesus for the oneness of his people being the substance of discourses, delivered in St. Stephen's Hall, in the city of St. John (s.n.], 1850), by John Thomson (page images at HathiTrust)
• A spiritual forward movement an open letter to Rev. Dr. Fraser, principal of the Presbyterian College, Montral (s.n., 1918), by Herbert Symonds (page images at HathiTrust; US access only)
• The relations of the Christian churches to one another, and problems growing out of them, especially in Canada (W. Briggs, 1913), by Robert Campbell (page images at HathiTrust; US access only)
• Suggestions for the octave of prayer for Christian unity, January 18-25, 1919 (January 5-12, Eastern calendar) (s.n., 1919), by Robert H. Gardiner (page images at HathiTrust; US access only)
• An appeal to all Christians for Christian union and a return to the one Lord, one faith, one baptism, one God and Father of all, who is above all, and through all and in all (s.n., 1905), by D. S. Adam (page images at HathiTrust; US access only)
• The Kingdom of Heaven and the Church (s.n.], 1912), by J. B. Cosens (page images at HathiTrust; US access only)
• The church of Christ its character, purpose and unity (Ingersoll Sun Electric Press, 1906), by T. A. Watson (page images at HathiTrust; US access only)
• Contending for the faith a sermon preached by the Lord Bishop of Fredericton in the chapel of Bishop's College, Lennoxville, Que., at the annual convocation service, June 23rd, 1910. (s.n., 1910), by Church of England in Canada. Diocese of Fredericton. Bishop (1908- 1934 : Richardson) and John Andrew Richardson (page images at HathiTrust; US access only)
• Our national church a sermon preached at the anniversary service of the Church of England Institute at Trinity Church, St. John, N.B., October 15th, 1902 (s.n., 1902), by John De Soyres (page images at HathiTrust)
• The road to unity among the Christian churches (The Beacon press, 1920), by Charles William Eliot (page images at HathiTrust)
• Eine Union in der Wahrheit : zum 350jährigen Gedächtnisse der Wittenberger Concordie vom Jahre 1536 (Lutherischer Concordia-Verlag, 1886), by G. Gösswein (page images at HathiTrust)
• L'Orient et Rome; étude sur l'union. (Impr. St.-Joseph, 1894), by Pierre Michel (page images at HathiTrust)
• Christian solidarity. (S.W. Partridge & Co., etc., etc., 1888), by Henry Stanley Newman (page images at HathiTrust)
• De Vereeniging. (H. Höveker, 1847) (page images at HathiTrust)
• A plea for greater unity (R.G. Badger, 1919), by Seth Wison Gilkey (page images at HathiTrust)
• If not a united church -- what? The Reinicker lectures at the Protestant Episcopal Theological Seminary in Virginia. (Fleming H. Revell, 1920), by Peter Ainslie (page images at HathiTrust)
• The principles of ecclesiastical unity; four lectures delivered in St. Asaph Cathedral on June, 16, 17, 18, and 19 (Longmans, Green, 1896), by Arthur James Mason (page images at HathiTrust)
• The unification of the churches; a present day study (Fleming H. Revell company, 1911), by D. W. Fisher (page images at HathiTrust)
• Lectures on the reunion of the churches (Dodd and Mead, 1872), by Johann Joseph Ignaz von Döllinger (page images at HathiTrust)
• Christianity practically applied (Baker & Taylor, 1894), by Ill.) International Christian Conference (1893 : Chicago, Evangelical Alliance for the United States of America, Ill.) Evangelical Alliance for the United States of America. Conference (1893 : Chicago, and Ill.). World's Congress Auxiliary World's Congress Auxiliary World's Congress Auxiliary World's Columbian Exposition (1893 : Chicago (page images at HathiTrust)
• The cry of Christendom : for a divine eirenikon : a plea with all the churches, for the rights of the people ; Christianity and peace (Printed for the author, 1890), by Alexander King (page images at HathiTrust)
• The fundamental principles of Christian unity : lectures delivered in Lent, 1902 (Church Militant, 1902), by Churchman's League of the District of Columbia, Henry Yates Satterlee, and Henry Yates Satterlee (page images at HathiTrust)
• Die neueren Bemḧungen um Wiedervereinigung der christlichen Kirchen (J.C.B. Mohr (Paul Siebeck), 1897), by Gustav Krüger (page images at HathiTrust)
• Christianity East and West : an ecclesiastical pilgrimage (Hodder and Stoughton, 1889), by Thomas Grieve Clark (page images at HathiTrust)
• The church of to-morrow; addresses delivered in the United States and Canada during the autumn of 1891. (Hunt & Eaton;, 1892), by W. J. Dawson (page images at HathiTrust)
• Christian unity at work : the Federal Council of the Churches of Christ in America, in quadrennial session at Chicago, Illinois, 1912 (Federal Council of the Churches of Christ in America, 1913), by Federal Council of the Churches of Christ in America and Charles S. Macfarland (page images at HathiTrust)
• Polemische en Irenische theologie : Bijdragen tot hare geschiedenis (E.J. Brill, 1882), by C. Sepp (page images at HathiTrust)
• Die Einigkeit im Geist (Wuppertaler Traktat-Gesellschaft, 1905), by H. Bauer (page images at HathiTrust; US access only)
• Church Union in Canada Joint Committee Proceedings (s.n., 1905), by Joint Committee on Church Union (page images at HathiTrust; US access only)
• Die orientalische Kirchenfrage und Oesterreichs Beruf in ihrer Lösung. (Jos. Roth, 1899), by Albert Ehrhard (page images at HathiTrust; US access only)
• Jidu jiao shu (Mei hua shu guan, 1907), by William Edward Macklin (page images at HathiTrust; US access only)
• Catholicity in its relationship to Protestantism and Romanism : being six conferences delivered at Newark, N. J., at the request of leading laymen of that city (G. P. Putnam's Sons, 1878), by Ferdinand C. Ewer (page images at HathiTrust)
• The correspondence between the Committee on Church Unity of the General Assembly of the Presbyterian Church in the U.S.A. and the Commission on Christian Unity of the General Convention of the Protestant Episcopal Church in the U.S. (Stated Clerk, 1896), by Presbyterian Church in the U.S.A. Committee on Church Unity and Episcopal Church. General Convention. Commission on Christian Unity (page images at HathiTrust)
• Evangelisch-reformierte Geistlichkeit des Kantons Bern und die Parteiungen ihrer Kirche (K.J. Wyss, 1882), by Gottfr Ischer (page images at HathiTrust)
• The church-idea; an essay toward unity. (Hurd and Houghton, 1872), by William Reed Huntington (page images at HathiTrust)
• Historical documents, advocating Christian union; Epochmaking statements by leaders among the Disciples of Christ for the restoration of the Christianity of the New Testament--its doctrines, its ordinances, and its fruits (The Christian century company, 1904), by Charles Alexander Young (page images at HathiTrust)
• A plea and plan for church unity. (Baker, Jones, 1885), by Francis Granger (page images at HathiTrust)
• The "ardent longing" of the Anglican communion for peace and unity : a sermon preached in Christ Church, Raleigh, on the occasion of the consecration of the Rt. Rev. Theodore Benedict Lyman, D.D., assistant bishop of North Carolina, December 11, 1873 (s.n.], 1873), by Henry C. Lay (page images at HathiTrust)
• The doctrine of the church and Christian reunion : being the Bampton lectures for the year 1920 (J. Murray, 1921), by Arthur C. Headlam (page images at HathiTrust)
• The unity of the church. (J. Murray, 1845), by Henry Edward Manning (page images at HathiTrust)
• Ideals and principles of church reform (T. & T. Clark, 1910), by J. C. Barry (page images at HathiTrust)
• Restatement and reunion : a study in first principles (Macmillan and Co., 1914), by Burnett Hillman Streeter (page images at HathiTrust)
• New Catholic Church with thoughts on theism and suggestions towards a public religious service in harmony with modern science and philosophy. (Trübner, 1887) (page images at HathiTrust)
• The woman in purple and scarlet; or, The downfall of Catholicism, the revelation of the man of sin and his destruction at the coming of Christ, together with the wonderful changes in the earth during the millennium. (Southwest Pub. Co., 1870), by Ambie White (page images at HathiTrust)
• Our plea for union and the present crisis (The Christian Century Company, 1901), by Herbert L. Willett (page images at HathiTrust)
• Leo XIII at the bar of history. A discussion of the papal plan for Christian unity. (Gibson Bros., printers, 1897), by Randolph H. McKim (page images at HathiTrust)
• The true temple : or, The Holy Catholic Church and communion of saints, in its nature, structure, and unity (Protestant Episcopal Book Society, 1861), by Charles Pettit McIlvaine (page images at HathiTrust)
• Apostolic order and unity. (T. & T. Clark, 1903), by Robert Bruce (page images at HathiTrust)
• A humble attempt to promote union and peace among Christians, by inculcating the principles of Christian liberty. To which is added, an appendix, I. Concerning the Jews. II. Concerning desists. III. Containing short extracts ... (F.B. Wright, 1802), by Richard Wright (page images at HathiTrust)
• Christian unity, its secret and success (Christian Witness Co., 1907), by Charles J. Fowler (page images at HathiTrust)
• The Utopia of unity (Fleming H. Revell Company, 1930), by Jay S. Stowell (page images at HathiTrust; US access only)
• Thoughts on unity (Student Christian Movement, 1920), by Neville Stuart Talbot (page images at HathiTrust; US access only)
• The relations of the Christian churches to one another, and problems growing out of them, especially in Canada (W. Briggs, 1913), by Robert Campbell (page images at HathiTrust)
• The free churches and re-union (W. Heffer & sons ltd., 1921), by T. R. Glover (page images at HathiTrust; US access only)
• The coming free Catholicism (G. Allen & Unwin ltd., 1918), by William George Peck (page images at HathiTrust; US access only)
• Comity and federation (Centenary Missionary Conference, 1906), by William Scott Ament (page images at HathiTrust; US access only)
• The movement toward church unity in local communities A summary of experience in the field of co-operation ([publisher not identified], 1920), by Alfred Williams Anthony (page images at HathiTrust)
• Toward a world Christian fellowship (Association press, 1938), by Kenneth Scott Latourette (page images at HathiTrust; US access only)
• Christian unity and Christian faith. (A. D. F. Randolph & company, 1885), by John Fulton (page images at HathiTrust)
• The scandal of Christianity (Willett, Clark & Colby, 1929), by Peter Ainslie (page images at HathiTrust; US access only)
• The church-idea: an essay towards unity (E.P. Dutton & company, 1899), by William Reed Huntington (page images at HathiTrust)
• Christ and the church; essays concerning the church and the unification of Christendom (F.H. Revell company, 1895), by American Institute of Christian Philosophy and Amory H. Bradford (page images at HathiTrust)
• The evangelical church : a series of discourses by ministers of different denominations, illustrating the spiritual unity of the church of Christ (T. Whittaker, 1879), by Henry Tullidge (page images at HathiTrust)
• Can the churches unite? (The Century Co., 1927), by World Conference on Faith and Order (page images at HathiTrust; US access only)
• A short method with high-churchmen (1870), by James E. Evans and Southern Methodist Publishing House (page images at HathiTrust)
• The manifestation of unity; a charge to the seventy-fifth annual convention of the Church in the diocese of Chicago. ([Gunthorp-Warren Printing Co.], 1912), by Charles Palmerston Anderson (page images at HathiTrust)
• Protestant Episcopal doctrine and church unity. (T. Whittaker, 1887), by C. M. Butler (page images at HathiTrust)
• Unitive Protestantism; a study in our religious resources (The Abingdon Press, 1930), by John T. McNeill (page images at HathiTrust; US access only)
• The church-idea : an essay toward unity (Scribner's, 1899), by William Reed Huntington (page images at HathiTrust)
• Church unity movements in the United States (Institute of Social and Religious Research, 1934), by Harlan Paul Douglass and Institute of Social and Religious Research (page images at HathiTrust; US access only)
• Church federation: its nature and function. (s.n., 1903), by Alfred Tyler Perry (page images at HathiTrust)
• "Church federation an answer to the call of God" : an address delivered ... at the Anniversary of the State Federation Society, November, 1902 (Executive Council, 1902), by Edward G. Selden (page images at HathiTrust; US access only)
• Experiences and impressions during a tour in Asia in 1912-1913, being extracts from personal letters of John R. Mott. (Priv. print., 1913), by John R. Mott (page images at HathiTrust)
• Recent suggestions for reunion (1918), by A. C. A. Hall (page images at HathiTrust; US access only)
• The reunion of Christendom : an Easter sermon (The Craig Press, 1892), by John Henry Barrows (page images at HathiTrust)
• A world movement for Christian unity (The Commission, 1914), by Lefferd M. A. Haughwout and Episcopal Church. Joint Commission for a World Conference on Faith and Order (page images at HathiTrust)
• World-unity in religion and religious organization (Tacoma, Wash., 1900), by Wash.) First Free Church of Tacoma (Tacoma and Francis Ellingwood Abbot (page images at HathiTrust)
• Not strangers, but-- brethren : report on the visit of the World Council Delegation to Germany, October, 1945. (American Committee for the World Council of Churches, 1945), by American Committee for the World Council of Churches (page images at HathiTrust; US access only)
• Toward Lutheran union, a Scriptural and historical approach (Concordia publishing house, 1943), by Theodore Graebner, Paul E. Kretzmann, and Paul E. Kretzmann (page images at HathiTrust; US access only)
• Proposals for Christian union. (Aylott and Jones, 1846), by Ernest Silvanus Appleyard (page images at HathiTrust)
• Union of Episcopal Methodism (Hunt & Eaton;, 1892), by Randolph S. Foster (page images at HathiTrust)
• Apostolic succession and the problem of unity (University Press, 1905), by Edward McCrady (page images at HathiTrust)
• Declaration and address (The Western Pennsylvania Christian Missionary Society, 1908), by Thomas Campbell and Thomas Acheson (page images at HathiTrust)
• Unity of the church ; The ministry ; The apostolical succession (D. Tilton Bigelow, 1852), by James Hervey Otey (page images at HathiTrust)
• Essays on Christian unity (James Clarke & Co., 1922), by William Robinson (page images at HathiTrust; US access only)
• Dr. S.M. Neel, the self-appointed Moses of the Southern Church : being a response to Dr. Neel's article, entitled "Col. Young's so-called reply" (Louisville, Ky. : [publisher not identified], [1907], 1907), by Bennett H. Young (page images at HathiTrust)
• Union : or, the divided church made one (London : T. Ward and co., [1837], 1837), by John Harris (page images at HathiTrust)
• The doctrine of the church and Christian reunion : being the Bampton lectures for the year 1920. (New York : Longmans, Green and Co., 1921., 1921), by Arthur C. Headlam (page images at HathiTrust)
• The unity of the faith in its relations to the authority of Scripture, the sacredness of conscience, and the supremacy of Christ (Edinburgh : Andrew Elliot ; London : Hamilton, Adams, 1859., 1859), by Alexander Leitch (page images at HathiTrust)
• Essay on Christian union. (New York : Samuel Hueston, 1850., 1850), by Charles Adams (page images at HathiTrust)
• The communion of saints: an attempt to illustrate the true principles of Christian union : in eight lectures delivered before the University of Oxford in the year MDCCCLI ... (Oxford : William Graham, 1851., 1851), by Henry Bristow Wilson (page images at HathiTrust)
• The true and only way of concord of all the Christian churches ... (London : Printed for John Hancock, 1680., 1680), by Richard Baxter and Puritan Collection of English and American Literature (Princeton Theological Seminary) (page images at HathiTrust)
• The proposed union with the Cumberland Presbyterians (Philadelphia : MacCalla & Co., Inc., 1904., 1904), by Benjamin Breckinridge Warfield (page images at HathiTrust)
• The religious condition of Christendom : exhibited in a series of papers, prepared at the instance of the British organisation of the Evangelical Alliance, and read at its fifth annual conference held in Freemason's Hall, London, August 20 to September 3, 1851 (London : James Nisbet and Co., 1852., 1852), by Evangelical Alliance. Conference (1851 : London) and Edward Steane (page images at HathiTrust)
• A letter from Mr Alexander Shields, to the prisoners for Christ, in Dunnottar-Castle. (Edinburgh : [publisher not identified], 1685., 1685), by Alexander Shields and Thomas F. Torrance Collection (Princeton Theological Seminary) (page images at HathiTrust)
• The age-question : or, A plea for Christian union (Philadelphia : William Flint, 1868., 1868), by Alfred Nevin (page images at HathiTrust)
• The reunion of Christendom : a paper prepared for the Parliament of Religions and the National Conference of the Evangelical Alliance held in Chicago, September and October, 1893 (New York : Evangelical Alliance Office, 1893., 1893), by Philip Schaff, Ill.) Evangelical Alliance. Conference (1893 : Chicago, and Ill.) World's Parliament of Religions (1893 : Chicago (page images at HathiTrust)
• A testimony to the truths of Christ : agreeably to the Westminster standards as received by the reformed Church of Scotland, and in opposition to defections from the Reformation sworn to in Britain and Ireland : agreed to by the Associate Synod of Original Seceders, 18th May 1827. (Edinburgh : Sold by Guthrie and Tait ; Ayr : Eilliam M'Carter ; Aberdeen : William Troup ; Dundee : Robert Dick ; Perth : James Dewar, 1827., 1827), by Associate Synod of Original Seceders (Scotland) and Thomas F. Torrance Collection (Princeton Theological Seminary) (page images at HathiTrust)
• Church government and church questions (Edinburgh : Duncan Grant, 1869., 1869), by Robert Williamson (page images at HathiTrust)
• Disciples of Christ Historical Collection (Association for the promotion of Christian unity, 1918), by Peter Ainslie (page images at HathiTrust)
• A testimony to the truths of Christ : agreeably to the Westminster standards as received by the Reformed Church of Scotland, and in opposition to defections from the reformation sworn to in Britain and Ireland: together with an act for renewing the covenants, and a formula (Glasgow : Printed by S&T Dunn, 1849., 1849), by Synod of United Original Seceders (Scotland) and Thomas F. Torrance Collection (Princeton Theological Seminary) (page images at HathiTrust)
• The great church awakes; ideas and studies concerning unity and reunion (London ; New York [etc.] : Longmans, Green and co., 1920., 1920), by Edwin James Palmer (page images at HathiTrust; US access only)
• Presbyterian, Baptist and Methodist testimony to confirmation, as a primitive and apostolic rite. (Philadelphia : Burns & Sieg, 1860., 1860), by Benjamin Wistar Morris and Baptism Controversy Collection (Princeton Theological Seminary) (page images at HathiTrust)
• Catholick unity, or, The only way to bring us all to be of one religion. (London : Printed by R.W. for Thomas Underhill [etc.], 1660., 1660), by Richard Baxter and Puritan Collection of English and American Literature (Princeton Theological Seminary) (page images at HathiTrust)
• Saint Paul on Christian unity, an exposition of the Epistle to the Ephesians. (New York ; Chicago [etc.] : Fleming H. Revell company, [1923], 1923), by John B. Cowden (page images at HathiTrust)
• The savior's creed : a plea for Christian unity (Fort Washington, MD : [publisher not identified], [1905], 1905), by Ruter William Springer (page images at HathiTrust; US access only)
• Evangelical Christianity : its history and witness; a series of lectures delivered at Mansfield College, Oxford, in the Hilary term, 1911 (New York, London : Hodder and Stoughton, 1911., 1911), by W. B. Selbie (page images at HathiTrust)
• The Christian union overture : an interpretation of the declaration and address of Thomas Campbell (St. Louis : Bethany Press, 1923., 1923), by Frederick D. Kershner (page images at HathiTrust)
• A story of church unity : including the Lambeth conference and the Congregational-Episcopal approaches (New Haven : Yale University Press ; London : H. Milford, Oxford University Press, 1923., 1923), by Newman Smyth (page images at HathiTrust; US access only)
• The War and Unity: Being Lectures Delivered At The Local Lectures Summer Meeting Of The University Of Cambridge, 1918, ed. by D. H. S. Cranage (Gutenberg ebook)
• The way of true peace and unity in the true church of Christ in all humility and bowels of love presented to them / by William Dell. (London : Printed for Giles Calvert, 1651), by William Dell (HTML at EEBO TCP)
• A demonstration of the necessity of settling some Gospel-government amongst the churches of Christ in this nation held forth in an answer to a querie whereby Mr. Saltmarch did once endeavour to hinder the settlement of all church-government in the nation : written in the year 1646, and now published for the present use of these times, wherein it may be seasonable to be taken into consideration for the preventing of further confusion and disorder amongst the professors of the Gospell / by John Dury. (London : Printed for Richard Wodnothe, 1654), by John Dury and Samuel Hartlib (HTML at EEBO TCP)
• Communion of churches, or, The divine management of gospel-churches by the ordinance of councils constituted in order according to the Scriptures as also the way of bringing all Christian parishes to be particular Reforming Congregationall Churches, humbly proposed as ... a means of uniting those two holy and eminent parties the Presbyterians and the Congregationals ... / written by John Eliot. (Cambridge [Mass.] : Printed by Marmaduke Johnson, 1665), by John Eliot (HTML at EEBO TCP)
• An historical account of the antiquity and unity of the Britanick churches continued from the conversion of these islands to the Christian faith by St. Augustine, to this present time / by a presbyter of the Church of England. (London : Printed for W. Whitwood ..., 1692), by Samuel Grascome (HTML at EEBO TCP)
• Reasons for vnitie, peace, and love with an answer (called Shadows flying away) to a book of Mr. Gataker, one of the assembly, intituled, A mistake, &c. and the book of the namelesse author called, The plea, both writ against me : and a very short answer, in a word, to a book by another namelesse author called, An after-reckoning with Master Saltmarsh, and to Master Edward his second part called, Gangrena, directed to me ... / by John Saltmarsh ... (London : Printed for Giles Calvert ..., 1646), by John Saltmarsh (HTML at EEBO TCP)
• A call to the Shulamite, or to the scattered and divided members of the church delivered and published upon occasion by Thomas Tanner. (London : Printed by Andrew Clark for Henry Brome ..., 1674), by Thomas Tanner (HTML at EEBO TCP)
• An epistle for true love, unity, and order in the Church of Christ, against the spirit of discord, disorder and confusion &c. recommended to friends in truth, chiefly for the sake of the weak and unstable minded ... / by Anne Whitehead, Mary Elson. (London : Printed by Andrew Sowle, 1680), by Anne Whitehead and Mary Elson (HTML at EEBO TCP)
• Irenicum, to the lovers of truth and peace heart-divisions opened in the causes and evils of them : with cautions that we may not be hurt by them, and endeavours to heal them / by Jeremiah Burroughes. (London : Printed for Robert Dawlman, MDCLIII [1653]), by Jeremiah Burroughs (HTML at EEBO TCP)
• Admirable and notable prophesies vttered in former times by 24. famous Romain-Catholickes, concerning the Church of Rome's defection, tribulation, and reformation / written first in Latine, & now published in the English tongue, both by Iames Maxwell ... (London : Printed by E.A. for W. Harper, and T. Harper, and are to be sold at their shop in S. Paules Churchyard, 1614), by James Maxwell (HTML at EEBO TCP)
• The cause and cure of divisions: or, The way and means for all Chr[istians] (however they are distinguished [or] named) to come to unity: Demonstrated and pointed out from the scriptures of truth; by Richard Stafford, a scribe instructed therein. ([London : [s.n.], Printed in the year, 1699]), by Richard Stafford (HTML at EEBO TCP)
• Copy of the letter returned by the ministers of New-England to Mr. John Dury about his pacification. (Cambridge [Mass.] : Printed by S.G. and M.I. for Hezekiah Usher of Boston, 1664), by John Norton (HTML at EEBO TCP)
• Christian unity exhorted to being a few words in tender love to all professing of Christianity in old England, the land of my nativity : wherein the difference between profession and possession of that which is really the substance of true religion, is clearly manifested : also, the great breach of Christian charity, caused by their furious contentions about formality : with a few words to the poor in spirit, concerning my opinion of a saving knowledge of Christ Jesus / by one who dearly loves all those whose conversation becomes Christ's Gospel. ([London : s.n.], 1678), by One who dearly loves all those whose conversation becomes Christ's Gospel (HTML at EEBO TCP)
• The watcher: or, The stone cut out of the mountains without hands, striking at the feet of the image,: whose head is gold, and brest of silver, and thighs of brass, and legs of iron, and feet part iron and part clay, Dan. 2. 31, 32, 33, 34, 35. Or, A discovery of the ground and end of all forms, professions, sects and opinions, and also how they now are made as friends, and joyn hand in hand against the substance, the life and power of God, which is now made manifest in his sons and daughters (according to his promise) as hath been plainly manifest in several meetings betwixt the people called Quakers, and the people called Baptists, which is here describ'd. And also a description of the true Church, ... / VVritten by a friend to all tender hearted ones, who hunger and thirst after God, who are hoping and seeking in forms for life, to the directing of their mindes, where and how to finde the true light which leads into the true life and power of Godliness, the end of all forms, where I rest with all who in spirit read me, who am known to them who are without, by the name, Iames Parnell. (London : Printed for Giles Caluert, and are to be sold at his shop at the Black-spread-Eagle, neer the West-end of Pauls, [1655]), by James Parnell (HTML at EEBO TCP)
• A perswasive to all dissenters to unity in religion, as it is establish'd in the Church of England: ([London] : Printed and sold by N. Thompson at the entrance into the Old-Spring-Garden near Charing-Cross, 1684) (HTML at EEBO TCP)
• A vvay unto true Christian unitie the worship of God in spirit and in truth : together vvith many spirituall benefits therein received now in this life and everlastingly ... (London : Printed by John Legatt and are to be sold by Edward Wright ..., 1648), by Edmund Reeve (HTML at EEBO TCP)
• A summarie platform of the heads of a body of practicall divinity which the ministers of the Protestant churches abroad have sued for, and which is farther enlarged in a treatise intituled, An earnest plea for gospel-communion, &c. (London : Printed for Richard Wodenothe ..., 1654), by John Dury (HTML at EEBO TCP)
• The vnerring and vnerrable church, or, An answer to a sermon preached by Mr. Andrew Sall formerly a Iesuit, and now a minister of the Protestant church / written by I.S. and dedicated to His Excellency the Most Honourable Arthur Earl of Essex ... ([S.l. : s.n.], 1675), by I. S. (HTML at EEBO TCP)
• The reuniting of Christianity, or, The manner how to rejoin all Christians under one sole confession of faith written in French by a learned Protestant divine ; and now Englished by P.A., Gent. (London : Printed by John Winter for William Gilbert ..., 1673), by Learned Protestant divine and P. A. (HTML at EEBO TCP)
• A peaceable enquiry into the nature of the present controversie among our united brethren about justification. Part I by Stephen Lobb ... (London : Printed for John Dunton, 1693), by Stephen Lobb (HTML at EEBO TCP)
• A peaceable method for the re-uniting Protestants and Catholicks in matters of faith principally in the subject of the Holy Eucharist : proceeding upon principles agreed-on and waving points in dispute : upon occasion of the late conceit concerning the perpetuity of faith touching that great mystery / written in French by Lewis Mainbourg. (Paris : [s.n.], 1672), by Louis Maimbourg and T. W. (HTML at EEBO TCP)
• Jerusalems glory, or, the saints safetie in eying the churches security,: wherein is shewed the captives redress: being an invitation to all the different minded men in the world to become one; with the advantage of unity, and the danger of variety from the example of the saints and servants of God, as well in former as these latter times. Offered to the view of the 97 builders imployed in that work, for the building of the true temple, and all others. / By Thomas Watson, a lover of peace. (London : Printed by J.C. for the authour, 1661), by Thomas Watson (HTML at EEBO TCP)
• The Protestant peace-maker, or, A seasonable persuasive to all serious Christians who call themselves Protestants that laying aside calumnies, and all exasperating disputes, they would pursue charity, peace, and union, as the only means (now left us) of safety and reformation of the publick manners : with a postscript, or notes on Mr. Baxter's and some others late writings for peace / by Edward, Lord Bishop of Cork and Ross in Ireland. (London : Printed for Robert Clavell ..., 1682), by Edward Wettenhall (HTML at EEBO TCP)
• The effect of Master Dury's negotiation for the uniting of Protestants in a Gospell interest in brief is this ([London? : s.n., 1657]), by John Dury (HTML at EEBO TCP)
• A perswasive to peace & unity among Christians, notwithstanding their different apprehensions in lesser things (London : Printed for B. Aylmer ..., 1672), by William Allen (HTML at EEBO TCP)
• A cordial-mediator for accordance of brethren that are of different judgments and wayes of administration in things that concerne the Kingdome of God for repairing of the breach and restoring of the paths for many generations : wherein is proposed the way and means (not to inforce or compell to an outward dissembling, hypocriticall uniformity, which is all that can be inforced unto by humane authority, but) to induce and ingage to a cordiall-uniformity even of soule and spirit amongst all that are truly and really Christians, and to bring them likewise into the same wayes and ministrations in the things of God / written by Ellis Bradshaw. (London : Printed and are to be sold by Lodowick Lloyd, also by Henry Crips and by Thomas Brewster, 1658), by Ellis Bradshaw (HTML at EEBO TCP)
• The Conformists reasons for hearing and joining with the Nonconformists ([S.l. : s.n., 1691?]) (HTML at EEBO TCP)
• A summarie account of Mr. Iohn Dury's former and latter negotiation for the procuring of the true gospell peace with Christian moderation and charitable unity amongst the Protestant churches and academies. (London : Printed for the author, 1657), by John Dury (HTML at EEBO TCP)
• Blessed unions an union with the Son of God by Faith, and an union in the Church of God by love, importunately pressed in a discourse which makes divers offers for those unions : together with a copy of those articles where-upon a most happy union ha's been lately made between those two eminent parties in England, which have now changed the names of Presbyterians and Congregationals, for that of United Brethren / by Cotton Mather. (Boston : Printed by B. Green and J. Allen for Samuel Phillips, 1692), by Cotton Mather (HTML at EEBO TCP)
• Pax redux, or, The Christian reconciler in three parts : being a project for re-uniting all Christians into one sole communion / done out of French into English by Philip Ayres ... (London : Printed and sold by Andrew Sowle ..., 1688), by Philip Ayres (HTML at EEBO TCP)
• The danger of schisms and contentions with respect to the ministry and ordinances of the Gospel, represented in a sermon preached at the meeting of the presbytery at Woodbridge, October 10th, 1739: and published at the desire of some of the ministers present. / By Jonathan Dickinson, M.A. Minister of the Gospel at Elizabeth-Town in New-Jersey. ; [Seven lines from I. Corinthians] (New-York, : Printed by J. Peter Zenger., 1739), by Jonathan Dickinson (HTML at Evans TCP)
• An humble attempt to promote explicit agreement and visible union of God's people in extraordinary prayer for the revival of religion and the advancement of Christ's Kingdom on earth, pursuant to Scripture-promises and prophecies concerning the last time. By Jonathan Edwards, A.M. Minister of the Gospel at Northampton. ; With a preface by several ministers. (Boston, New-England: : Printed for D. Henchman in Cornhil., 1747 [i.e., 1748]), by Jonathan Edwards and Joseph Sewall (HTML at Evans TCP)
• A sermon on the unity of the Christian Church. [One line from I Corinthians] (Philadelphia: : Printed for William Glendinning, Preacher of the Gospel, by W.W. Woodward, at Franklin's Head, No. 41, Chesnut-Street., 1794), by William Glendinning (HTML at Evans TCP)

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