| Call number | Item |
| Q | Science (Go to start of category) |
| QH-QR | Biological Sciences (Go to start of category) |
| QH | Natural History and Biology (General) (Go to start of category) |
| QH11 .D2 1871 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage of the H.M.S. Beagle Round the World, Under the Command of Capt. Fitz Roy (new edition; New York: D. Appleton and Co., 1871), by Charles Darwin |
| QH11 .D2 1890 | Journal of Researches into the Natural History and Geology of the Countries Visited During the Voyage Round the World of H.M.S. Beagle (illustrated edition; London: John Murray, 1890), by Charles Darwin (illustrated HTML and page images at Charles Darwin Online) |
| QH11 .D2 1909 | The Voyage of the Beagle (Harvard Classics v29, with introduction and notes; New York: P.F. Collier, 1909), by Charles Darwin |
| QH11 .D2 1913 | The Voyage of the Beagle (based on the eleventh edition of 1890, reprinted 1913), by Charles Darwin (Gutenberg text) |
| QH13 .G7 1961 | The Encyclopedia of the Biological Sciences (New York: Reinhold; London: Chapman and Hall, c1961), ed. by Peter Gray (page images at HathiTrust) |
| QH13 .O6 | Dictionnaire Universel d'Histoire Naturelle (16 volumes (13 dictionary and 3 atlas volumes), in French; 1844-1849), by Charles d' Orbigny (page images at HathiTrust) |
| QH26 .M2 | Fathers of Biology (London: Percival and Co., 1890), by Charles McRae (Gutenberg text) |
| QH31 .A19 P3 | Elizabeth Cary Agassiz: A Biography (Boston and New York: Houghton Mifflin Company, 1919), by Lucy Allen Paton (multiple formats at archive.org) |
| QH31.A2 A2 | Louis Agassiz: His Life and Correspondence, by Elizabeth Cabot Cary Agassiz, contrib. by Louis Agassiz (Gutenberg text) |
| QH31.A2 A2 1885 | Louis Agassiz: His Life and Correspondence (2 volumes; Boston and New York: Houghton, Mifflin and Co., 1885), by Elizabeth Cabot Cary Agassiz, contrib. by Louis Agassiz |
| QH31 .A2 C6 | Louis Agassiz as a Teacher: Illustrative Extracts on His Method of Instruction, by Lane Cooper (Gutenberg text) |
| QH31 .A2 R6 | Runner of the Mountain Tops: The Life of Louis Agassiz (New York: Random House, 1939), by Mabel Louise Robinson, illust. by Lynd Ward (illustrated HTML at Celebration of Women Writers) |
| QH31 .A55 A28 | An Explorer Comes Home: Further Adventures of Roy Chapman Andrews (without illustrations; c1947), by Roy Chapman Andrews (HTML in Canada; NO US ACCESS) |
| QH31 .B854 A3 | Eliza Brightwen, Naturalist and Philanthropist: An Autobiography (New York: American Tract Society, ca. 1909), by Mrs. Brightwen, ed. by W. H. Chesson, contrib. by Edmund Gosse (page images at HathiTrust) |
| QH31 .B854 A3 | Eliza Brightwen: The Life and Thoughts of a Naturalist (London and Leipzig: T. F. Unwin, 1909), by Mrs. Brightwen, ed. by W. H. Chesson, contrib. by Edmund Gosse (page images at HathiTrust; US access only) |
| QH31 .C7 O4 | The Life of Philibert Commerson, D. M., Naturalist du Roi: An Old-World Story of French Travel and Science in the Days of Linnaeus (London: J. Murray, 1909), by Samuel Pasfield Oliver, ed. by G. F. Scott Elliot (page images at HathiTrust; US access only) |
| QH31 .D2 | The Autobiography of Charles Darwin (as published in "The Life and Letters of Charles Darwin"), by Charles Darwin, ed. by Francis Darwin (Gutenberg text) |
| QH31 .D2 A2 | The Life and Letters of Charles Darwin (two-volume edition), by Charles Darwin, ed. by Francis Darwin |
| QH31 .D2 A2 | The Life and Letters of Charles Darwin (three-volume edition; with other autobiographical material), by Charles Darwin, ed. by Francis Darwin (illustraed HTML and page images with commentary at Charles Darwin Online) |
| QH31 .D2 A4 | More Letters of Charles Darwin, by Charles Darwin, ed. by Francis Darwin and A. C. Seward |
| QH31 .D2 H85 | Darwiniana, by Thomas Henry Huxley (Gutenberg text) |
| QH31 .D3 K8 | Erasmus Darwin (New York: D. Appleton and Co., 1880), by Ernst Krause, trans. by W. S. Dallas, contrib. by Charles Darwin (multiple formats at archive.org) |
| QH31 .D3 S5 | Memoirs of the Life of Dr. Darwin, Chiefly During His Residence in Lichfield: With Anecdotes of His Friends, and Criticisms on his Writings (London: J. Johnson, 1804), by Anna Seward (multiple formats at archive.org) |
| QH31 .G6 G6 | The Life of Philip Henry Gosse, F. R. S. (London: Kegan Paul, Trench, Trübner and Co., 1890), by Edmund Gosse (multiple formats at archive.org) |
| QH31 .H2B7 | Haeckel: His Life and Work (London: T. Fisher Unwin, 1906), by Wilhelm Bölsche, trans. by Joseph McCabe |