| Call number | Item |
| Q | Science (Go to start of category) |
| QA | Mathematics and Computer Science (Go to start of category) |
| QA471 .Z3 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Einführung in die Projektive Geometrie (in German; Leipzig and Berlin: B. G. Teubner, 1912), by Max Zacharias |
| QA473 .S45 | An Introduction to Modern Geometry (New York: J. Wiley and Sons; London, Chapman and Hall, 1939), by Levi S. Shively (page images at HathiTrust) |
| QA474 .D8 | Modern Geometry: The Straight Line and Circle (London: Macmillan, 1920), by Clement V. Durell (page images at HathiTrust; US access only) |
| QA485 .D4 1639 | Brouillon Project d'une Atteinte aux Evenemens des Rencontres du Cone avec un Plan, par L,S,G,D,L (in French; 1639), by Gérard Desargues |
| QA501 .D25 1839 | Elements of Descriptive Geometry, by Charles Davies (page images at Cornell) |
| QA501 .G49 1906 | Lehrbuch der Darstellenden Geometrie ("Teil I" only volume known to be published, in German; Leipzig: G. J. Göschen, 1906), by Erich Geyger |
| QA501 .H5 | Darstellende Geometrie (in German; Leipzig and Berlin: B. G. Teubner, 1914), by Johannes Hjelmslev |
| QA501 .L51 | Elements of Geometry and Trigonometry, by A. M. Legendre and Charles Davies, ed. by J. Howard Van Amringe (page images at Cornell) |
| QA502 .N5 | A Treatise on Projection (London: R. Groomidge, 1840), by Peter Nicholson (page images at HathiTrust) |
| QA515 .H2 | Stereography: or, A Compleat Body of Perspective, in All its Branches (2 volumes in 1; London : Printed for the author by W. Bowyer, 1738), by John Hamilton (multiple formats at Google) |
| QA531 .C5 2011 | CK-12 Trigonometry (second edition, c2011), by Art Fortgang, Andrea Hayes, Lori Jordan, Mara Landers, Brenda Meery, and Larry Ottman (multiple formats at archive.org) |
| QA531 .H33 1943 | Plane and Spherical Trigonometry With Applications (Boston: D. C. Heath and Co., c1943), by William L. Hart (page images at HathiTrust) |
| QA531 .K4 | Trigonometry (New York: Macmillan, 1914), by Alfred Monroe Kenyon and Louis Ingold (multiple formats at Google) |
| QA531 .W472 | Plane and Spherical Trigonometry (Boston: Ginn and Company, c1915), by George Wentworth and David Eugene Smith, contrib. by G. A. Wentworth (PDF at djm.cc) |
| QA535 .A43 | Geometria e Trigonometria della Sfera (in Italian; Milan: U. Hoepli, 1900), by Cristoforo Alasia (page images at HathiTrust; US access only) |
| QA535 .T63 1886a | Spherical Trigonometry, for the Use of Colleges and Schools (fifth edition, 1886), by I. Todhunter (page images at Cornell) |
| QA551 .F6 | Coordinate Geometry (New York: Macmillan, 1911), by Henry B. Fine and Henry Dallas Thompson (PDF at djm.cc) |
| QA551 .H29 1963 | Analytic Geometry and Calculus (second edition; Boston: D. C. Heath and Co., 1963), by William L. Hart (page images at HathiTrust) |
| QA551 .S52 1922 | Analytic Geometry (Boston: Ginn and Company, c1922), by Lewis Parker Siceloff, George Wentworth, and David Eugene Smith (PDF at djm.cc) |
| QA551 .T16 | An Elementary Course in Analytic Geometry, by J. H. Tanner and Joseph Allen (page images at Cornell) |
| QA552 .A8 | The Analytical Geometry of the Conic Sections (London: A. and C. Black, 1908), by E. H. Askwith (page images at HathiTrust) |
| QA552 .A8 | A Course of Pure Geometry: Containing a Complete Geometrical Treatment of the Properties of the Conic Sections (Cambridge: At the University Press, 1917), by E. H. Askwith (multiple formats at archive.org) |
| QA552 .B55 1881 | Conic Sections Treated Geometrically, by W. H. Besant (page images at Cornell) |
| QA552 .B85 1896a | Briot and Bouquet's Elements of Analytical Geometry of Two Dimensions, by M. Briot, trans. by James Harrington Boyd (page images at Cornell) |
| QA552 .J76 1912a | An Introduction to Algebraical Geometry, by A. Clement Jones (page images at Cornell) |