| 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) |
| QH31.A2 A2 1885 | ![[Info]](https://onlinebooks.library.upenn.edu/info.gif) 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 |
| QH31 .H9 H982 | Life and Letters of Thomas Henry Huxley, by Thomas Henry Huxley and Leonard Huxley |
| QH31 .L2 P12 1901 | Lamarck, the Founder of Evolution: His Life and Work; With Translations of His Writings on Organic Evolution (New York et al.: Longmans, Green and Co., 1901), by A. S. Packard, contrib. by Jean Baptiste Pierre Antoine de Monet de Lamarck (Gutenberg text and illustrated HTML) |
| QH31 .M9 A3 | Letters to a Friend, by John Muir (HTML at Sierra Club) |
| QH31 .M9 A3 | A Thousand-Mile Walk to the Gulf, by John Muir (illustrated HTML at Sierra Club) |
| QH31 .M9 A3 | Travels in Alaska, by John Muir |
| QH31 .M9 A35 | The Story of My Boyhood and Youth, by John Muir |
| QH31 .P21 | Nature and Life: Facts and Doctrines Relating to the Constitution of Matter, the New Dynamics, and the Philosophy of Nature (New York: D. Appleton and Company, 1875), by Fernand Papillon, trans. by August Rodney Macdonough (PDF with commentary at arfalpha.com) |
| QH31 .R7 A15 | The Life and Letters of George John Romanes, M.A., LL.D., F.R.S. (London; New York: Longmans, Green, 1898), by Ethel Duncan Romanes and George John Romanes (multiple formats at archive.org) |
| QH31 .S573 A3 1994 | The Strands of a Life: The Science of DNA and the Art of Education (Berkeley: University of California Press, 1994), by Robert Sinsheimer (HTML at UC Press) |