Natural history -- Pennsylvania -- Delaware County

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• Natural history -- Pennsylvania
• Delaware County (Pa.)

• Geology -- Pennsylvania -- Delaware County

• History of Delaware County, Pennsylvania (Philadelphia: Printed by Henry B. Ashmead, 1862), by George Smith (PDF at delawarecountyhistory.com; 142 MB)
• History of Delaware County, Pennsylvania, from the discovery of the territory included within its limit to the present time, with a notice of the geology of the county, and catalogues of its minerals, plants, quadrupeds, and birds, written under the direction and appointment of the Delaware County Institute of Science, by George Smith, M.D. (Philadelphia, Printed by H.B. Ashmead, 1862), by George Smith (page images at HathiTrust)

• Field notes in Delaware County, by C. E. Hall, with a colored geological map of the county, and thirty-nine photographic pictures of the granite quarries, the kaolin mines, the serpentine outcrops, and the castle rocks ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1885), by Charles Edward Hall (page images at HathiTrust)

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

• Extinct Pennsylvania Animals (2 volumes; Altoona, PA: Altoona Tribune Pub. Co., 1917-1919), by Henry W. 1880-1958 Shoemaker (page images at HathiTrust)
• Barton's Fragments of the natural history of Pennsylvania, [pt. 1] Edited by Osbert Salvin. (London [Printed by Taylor and Francis], 1883), by Benjamin Smith Barton (page images at HathiTrust; US access only)
• Fragments of the natural history of Pennsylvania / By Benjamin Smith Barton ... (Lond., 1883), by Benjamin Smith Barton (page images at HathiTrust; US access only)
• The Wissahickon hills; / memories of leisure hours out of doors in an old countryside,. (Philadelphia, : University of Pennsylvania press, 1930), by Cornelius Weygandt (page images at HathiTrust)

• History of Bucks county, Pennsylvania, from the discovery of the Delaware to the present time / by William W. H. Davis. (New York ; Chicago : The Lewis Pub. Co., 1905), by W. W. H. Davis (page images at HathiTrust)
• The history of Bucks County, Pennsylvania, from the discovery of the Delaware to the present time. By W. W. H. Davis. (Doylestown, Pa., Democrat book and job office print, 1876), by W. W. H. Davis (page images at HathiTrust)

• History of Lancaster County : to which is prefixed a brief sketch of the early history of Pennsylvania / compiled from authentic sources by I. Daniel Rupp. (Lancaster, Penn. : Gilbert Hills, 1844), by I. Daniel Rupp (page images at HathiTrust)
• History of Lancaster County. (Lancaster, Penn., G. Hills, 1844), by Israel Daniel Rupp (page images at HathiTrust)
• An authentic history of Lancaster County : in the state of Pennsylvania / by J.I. Mombert. (Lancaster, Pa. : J.E. Barr & Co., 1869), by J. I. Mombert (page images at HathiTrust)

• Handbook of the flora of Philadelphia and vicinity, containing data relating to the plants within the following radius: eastern Pennsylvania, north to the Blue Mountains, and west to the Susquehanna; all of New Jersey except the northern counties; and New Castle County, Delaware, with keys for identification of species, comp. by Ida A. Keller and Stewardson Brown. (Philadelphia, Philadelphia botanical club, 1905), by Ida Augusta Keller (page images at HathiTrust)
• Trillia. Proceedings of the Botanical Society of Western Pennsylvania. (Pittsburgh, Pa., The Botanical Society of Western Pennsylvania.) (page images at HathiTrust)
• Compendium floræ philadelphicæ: containing a description of the indigenous and naturalized plants found within a circuit of ten miles around Philadelphia. By William P. C. Barton. (Philadelphia: Published by M. Carey and son, no. 126, Chestnut street, 1818), by William P. C. Barton (page images at HathiTrust)
• Flora of Pennsylvania, and botanist's pocket manual : comprising a glossary of botanical terms, analytical tables, and the natural orders ... / by H.R. Noll. (Philadelphia : Lippincott, Grambo, and Co., 1851), by Henry R. Noll (page images at HathiTrust)
• Journal of a botanical excursion in the northeastern parts of the states of Pennsylvania and New York, during the year 1807 / By Frederick Pursh. (Philadelphia : Brinckloe & Marot, printers, 1869), by Frederick Pursh (page images at HathiTrust)
• The ferns and flowering plants of central Pennsylvania, by James Peter Kelly ... authorized by the Council on Research, the Pennsylvania State College. (State College, Pa., [c1937]), by James Peter Kelly (page images at HathiTrust)
• Check-list of the woody plants of a portion of the South Mountains near Mont Alto, Pennsylvania. By J. S. Illick ... ([n. p.], 1913), by Pennsylvania. Department of Forests and Waters (page images at HathiTrust; US access only)
• Flora of Northeastern Pennsylvania, Alfred Twining. (Scranton, Pa., Everhart Museum of Natural History, Science and Art, 1917), by Alfred Twining (page images at HathiTrust)

• Report on the New Red of Bucks and Montgomery counties, by Benjamin Smith Lyman ... ([Harrisburg], 1895), by Benjamin Smith Lyman (page images at HathiTrust)
• Catalogue of the Geological museum. (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1878-89), by Charles Edward Hall (page images at HathiTrust)
• Report of progress in the Juniata district on the fossil iron ore beds of middle Pennsylvania, by John H. Dewees, with a report of the Aughwick valley and east Broad Top district, by C. A. Ashburner ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1878), by John H. Dewees (page images at HathiTrust)
• Report on the geology of the four counties, Union, Snyder, Mifflin and Juniata with descriptions. Of the Clinton fossil ore mines, Marcellus carbonate iron ore mines, Oriskany glass sand mines, and Lewistown limestone quarries ... By E. V. D'Invilliers. (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1891), by Edward Vincent D'Invilliers (page images at HathiTrust)
• The geology of Pike and Monroe counties. By I. C. White. Special surveys of the Delaware and Lehigh water gaps. By H. M. Chance ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1882), by I. C. White (page images at HathiTrust)
• The geology of the Susquehanna River regíon in the six counties of Wyoming, Lackwanna, Luzerne, Columbia, Montour, and Northumberland. By I. C. White ... With a colored geological map in two sheets; and 31 page plates in the text. (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1883), by I. C. White (page images at HathiTrust)
• Report of progress in the Beaver river district of the bituminous coal-fields of western Pennsylvania, by I. C. White (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1878), by I. C. White (page images at HathiTrust)
• The geology of McKean County, and its connection with that of Cameron, Elk and Forest. By Chas. A. Ashburner (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1880-81), by Charles A. Ashburner (page images at HathiTrust)
• The township geology of Elk and Forest counties, by Charles A. Ashburner, and of Cameron County by Arthur W. Sheafer. Relates especially to the geology of the Coal Measures of the Carboniferous age ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1885), by Charles A. Ashburner (page images at HathiTrust)
• Stratigraphy of the bitmuninous coal field of Pennsylvania, Ohio and West Virginia / Israel C. White. (Washington : Govt. Print. Off., 1891), by I. C. White (page images at HathiTrust)
• The geology of the Pittsburgh coal region. By J.P. Lesley ... Read before the American institute of mining engineers, at the Pittsburgh meeting, February, 1886 ([New York, 1886?]), by J. P. Lesley (page images at HathiTrust)
• Contributions to the mineralogy of the Newark group in Pennsylvania ... (Philadelphia, [1910]), by Edgar Theodore Wherry (page images at HathiTrust)
• The northern townships of Butler County. By H. Martyn Chance. (Harrisburg, Pa. : Board of Commissioners for the Second Geological Survey, 1879), by H. M. Chance (page images at HathiTrust)
• A summary description of the geology of Pennsylvania / J.P. Lesley ... [et al.]. (Harrisburg : Geological survey of Pennsylvania, 1892), by J. P. Lesley (page images at HathiTrust)
• Misc[ellaneous] papers (Harrisburg, Dept. of internal affairs, Bureau of topographic and geologic survey, 1920-), by Pennsylvania. Bureau of Topographic and Geologic Survey (page images at HathiTrust)
• Guidebook to the geology of the Pennsylvania turnpike, by A. B. Cleaves and Geo. H. Ashley. (Harrisburg, Pa., Dept. of Internal Affairs, Topographic and Geologic Survey, 1942), by Arthur Bailey Cleaves (page images at HathiTrust)
• Report of progress in Bradford and Tioga counties. (Harrisburg : Board of Commissioners for the Second Geological Survey, [1878]), by Andrew Sherwood (page images at HathiTrust)
• The township geology of Elk and Forest counties and of Cameron County : related especially to the geology of the coal measures of the Carboniferous Age / [Elk and Forest counties] by Charles A. Ashburner ; [Cameron County] by Arthur W. Sheafer. . (Harrisburg : Pub. by the Board of Commissioners for the Second Geological Survey, 1885), by Charles A. Ashburner (page images at HathiTrust)
• ... Final report ordered by Legislature, 1891. A summary description of the geology of Pennsylvania, in three volumes, with a new geological map of the state, a map and list of bituminous mines ... J. P. Lesley, state geologist. (Harrisburg : Pub. by the Board of commissioners for the Geological survey, 1892-1895), by Pennsylvania. Geological survey (page images at HathiTrust)
• The Helderberg limestone of central Pennsylvania ... By John B. Reeside, Jr ... ([Washington, 1917]), by John B. Reeside (page images at HathiTrust)
• The Helderberg limestone of central Pennsylvania. By John B. Reeside, jr. ([Washington, 1917]), by John B. Reeside (page images at HathiTrust)
• The geology of Pennsylvania : a government survey / by Henry Darwin Rogers. (Philadelphia : J.B. Lippincott, 1858), by Henry D. Rogers (page images at HathiTrust)
• Report of progress in the Clearfield and Jefferson district of the bituminous coal-fields of western Pennsylvania. By Franklin Platt ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1875), by Franklin Platt (page images at HathiTrust)
• Stratigraphy of the bituminous coal field of Pennsylvania, Ohio and West Virginia, by Israel C. White. (Washington, Govt. print. off., 1891), by I. C. White (page images at HathiTrust; US access only)
• A study of the igneous rocks at York Haven and Stony Brook, Pa. and their accompanying formations ... (Philadelphia, Avil printing company, 1898), by Frederick Ehrenfeld (page images at HathiTrust)
• Pennsylvania glaciation, first phase; materials for a discussion of the attenuated border of the moraine described in volume Z of the second Geological survey of Pennsylvania, by Edward Higginson Williams, jr. ... (Woodstock, Vt., 1917), by Edward Higginson Williams (page images at HathiTrust)
• Transactions of the Geological Society of Pennsylvania. Vol. 1, part 1-2. (Philadelphia : J. Kay, 1834-1835), by Philadelphia Geological Society of Pennsylvania (page images at HathiTrust)
• Report of progress in ... (Harrisburg, Pa. : Board of Commissioners for the Second Geological Survey, 1875-91) (page images at HathiTrust)
• Annual report of the Geological survey of Pennsylvania for 1885-1887. (Harrisburg, Board of Commissioners for the Geological survey, 1886-89), by Geological Survey of Pennsylvania (page images at HathiTrust)
• The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coalfields of North America and Great Britain, by Henry Darwin Rogers, state geologist ... (Edinburgh London, W. Blackwood and sons; Philadelphia, J. B. Lippincott & co., 1858), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Some structural features of the northern anthracite coal basin, Pennsylvania / by N.H. Darton. (Washington, D.C. : United States Government Printing Office : For sale by the Supt. of Docs., 1940), by Nelson Horatio Darton (page images at HathiTrust; US access only)
• The Martinsburg formation (Middle and Upper Ordovician) in the Delaware Valley, Pennsylvania-New Jersey / by Avery Ala Drake and Jack B. Epstein. ([Washington : U.S. Govt. Print. Off., 1967]), by Avery Ala Drake (page images at HathiTrust; US access only)
• Report of progress 1874-1889, A-Z. (Harrisburg, Board of Commissioners for the Second Geological Survey, 1875-91), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Annual report on the Geological Survey of Pennsylvania. (Harrisburg, 1836-42), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Report of progress. (Harrisburg, Board of Commissioners for the Second Geological Survey.), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Report ... (Harrisburg, C.E. Aughinbaugh, printer to the state of Pennsylvania, 1910-19), by Pennsylvania. Topographic and Geological Survey Commission (page images at HathiTrust)
• Annual report on the geological survey of Pennsylvania ... (Harrisburg, 1836-42), by Pennsylvania. State Geologist (1836-1841) (page images at HathiTrust)
• Report of the Board of Commissioners ... ([Harrisburg]), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Report of progress. (Harrisburg, Pub. by the Board of Commissioners for the Second Geological Survey.), by Geological Survey of Pennsylvania (page images at HathiTrust; US access only)
• Geological report of progress in the laboratory of the Survey at Harrisburg / Second Geological Survey of Pennsylvania. (Harrisburg : Pub. by the Board of Commissioners for the Second Geological Survey, 1875-) (page images at HathiTrust; US access only)
• Report of progress in the district of York and Adams counties : illustrated by maps and cross-sections, showing the iron ore belts and individual mines; with descriptions of the same, notes on a transit line to establish altitudes, and a catalogue of specimens collected and placed in the museum at Harrisburg / by Persifor Frazer, jr. (Harrisburg : published by the Board of Commissioners for the Second Geological Survey, 1876), by Persifor Frazer (page images at HathiTrust)
• Special report on the trap dykes and Azoic rocks of southeastern Pennsylvania / By T. Sterry Hunt. Part I. Historical introduction. (Harrisburg : Pub. by the Board of commissioners for the Second geological survey, 1878), by Thomas Sterry Hunt (page images at HathiTrust; US access only)
• Progress report. (Harrisburg.), by Pennsylvania. Bureau of Topographic and Geologic Survey (page images at HathiTrust; US access only)
• The geology of Pennsylvania; a government survey: with a general view of the geology of the United States, essays on coal-formation and its fossils, and a description of the coal-fields of North America and Great Britain / by Henry Darwin Rogers, state geologist. (Edinburgh London : W. Blackwood and sons; Philadelphia : J. B. Lippincott & co., 1858), by Pennsylvania. State Geologist (1836-1841) (page images at HathiTrust)
• Geological Survey of Pennsylvania. Final report ordered by Legislature, 1891. A summary description of the geology of Pennsylvania. (Harrisburg, Board of Commissioners for the Geological Survey, 1892-95), by Geological Survey of Pennsylvania (page images at HathiTrust)
• First[-sixth] annual report on the Geological survey of Pennsylvania / By Henry D. Rogers, state geologist ... [1836-1841]. (Harrisburg, 1836-42), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Historical sketch of geological explorations in Pennsylvania and other states / by J. P. Leslley. With an appendix containing the annual reports of the state geologist to the board of commissioners. (Harrisburg : Pub. by the Board of commissioners for the Second geological survey, 1876), by J. P. Lesley (page images at HathiTrust)
• The geology of Pennsylvania : a government survey ; with a general view of the geology of the United States, essays on the coal-formation and its fossils, and a description of the coal-fields of North America and Great Britain / by Henry Darwin Rogers, state geologist. (New York : Van Nostrand, 1868), by Geological Survey of Pennsylvania (page images at HathiTrust)
• Transactions of the Geological Society of Pennsylvania. (Philadelphia, James Kay, jun. & brother; Pittsburgh, John I. Kay & Co.), by Philadelphia Geological Society of Pennsylvania (page images at HathiTrust)
• Report of progress in the Fayette & Westmoreland district of the bituminous coal-fields of western Pennsylvania, by J. J. Stevenson ... (Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1877-78), by John J. Stevenson (page images at HathiTrust)
• Catalogue of the geological museum / By Charles E. Hall [and others]. (Harrisburg : Board of commissioners for the Second geological survey, 1878-1889), by Charles Edward Hall (page images at HathiTrust; US access only)
• A general index of the Final summary report of the geology of Pennsylvania / With an appendix containing a list of, and brief guide to, the publications of the Survey, compiled by William A. Ingham. (Harrisburg : Board of commissioners for the second geological survey, 1895), by Pennsylvania. State Geologist (1874-1890) (page images at HathiTrust; US access only)
• Economic geology of the Kittanning and Rural valley quadrangles, Pennsylvania, by Charles Butts. (Washington, Govt. print. off., 1906), by Charles Butts (page images at HathiTrust)
• Mémoire sur la géologie de la partie sud-est de la Pennsylvanie ... (Lille : Imprimerie Six-Horemans, 1882), by Persifor Frazer (page images at HathiTrust; US access only)

More items available under broader and related terms at left.