The nucleic acids: chemistry and biology - Chargaff, Erwin. (Academic Press, 1955)

Occasional papers - Boston Society of Natural History. (1904)

Occasional papers of the Boston Society of Natural History - Boston Society of Natural History. (Boston Society of Natural History, 1904)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 2010)

Oceanic ichthyology : a treatise on the deep-sea and pelagic fishes of the world, based chiefly upon the collections made by the steamers "Blake," "Albatross," and "Fishhawk" in the northwestern Atlantic, with an atlas containing 417 figures / by George Brown Goode and Tarleton H. Bean. Pub. in connection with the National Museum and the Smithsonian institution - Smithsonian Institution (Printed for the Museum, 1896)

Odontographie. Vergleichende Darstellung des Zahnsystemes der lebenden und fossilen Wirbelthiere - Giebel, C. (Christoph), 1820 -1881 (A. Abel, 1855)

On Chlamydoselachus anguineus Garm. A remarkable shark found in Norway, 1896 - Collett, Robert, 1842 -1913 (1897)

On the anatomy of vertebrates - Owen, Richard, 1804 -1892 (Longmans, Green, 1866)

On the anatomy of vertebrates ... - Owen, Richard, 1804 -1892 (Longmans, Green and Co, 1866)

On the appendices genitales in the Greenland shark, Somniosus microcephalus (Bl. Schn.), and other selachians - Jungersen, Hector F. E. (Hector Frederik Estrup), 1854 -1917 (Bianco Luno (F. Dreyer), Printer to the Court, 1899)

On the morphology of the duck and the auk tribes - Parker, William Kitchen William Kitchen Parker 1823 -1890 (s.n.], 1890)

De ontwikkeling van het chondrocranium van Alytes obstetricans voor de metamorphose - Seters, Wouter Hendrik van. ("Het Klaverblad", 1921)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank Haak), 1861 -1937 (Frank H. Lattin, 1890)

The origin of the fittest : essays on evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (D. Appleton, 1887)

The origin of the fittest : essays on evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (Macmillan and Company, 1887)

The origin of the fittest; essays on evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (D. Appleton, 1887)

The origin of the vertebrate limbs : recent evidence upon this problem from studies on primitive sharks - Osburn, Raymond C. (Raymond Carroll), 1872 -1955 (Academy of Sciences, 1906)

Our face from fish to man; a portrait gallery of our ancient ancestors and kinsfolk together with a concise history of our best features - Gregory, William K. (William King), 1876 -1970 (G.P. Putnam's Sons, 1929)

Outlines of comparative anatomy of vertebrates - Kingsley, J. S. (John Sterling), 1854 -1929 (P. Blakiston, 1917)

Outlines of general zoology - Baird, Spencer Fullerton, 1823 -1887 (Rudolph Garrigue, 1851)

Outlines of vertebrate palæontology for students of zoology - Woodward, Arthur Smith, 1864 -1944 (University Press, 1898)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Young J. Pentland, 1892)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Young J. Pentland, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1892)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton & Co, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Pentland, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (H. Frowde and Hodder & Stoughton, 1899)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Appleton, 1916)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton, 1895)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (D. Appleton, 1906)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (H. Frowde and Hodder & Stoughton, 1921)

Outlines of zoology - Thomson, J. Arthur (John Arthur), 1861 -1933 (Humphrey Milford, Oxford University Press, 1929)

Over de ontwikkeling van het chondrocranium en de kraakbeenige wervelkolom van eenige Urodela en Anura - Peeters, Johannes Leonardis Elbertus. (G.F. Theonville, 1910)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1897)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1895)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1916)

Palaeontographia Italica : Memorie di paleontologia - Canavari, Mario 1855 -1928 (Tip. T. Nistri, 1919)

Palaeontographica. Supplement (Theodor Fischer, 1912)

Palaeontographica (Theodor Fischer, 1876)

Palaeontographica (Theodor Fischer, 1891)

Palaeontographica (Theodor Fischer, 1897)

Palaeontographica (Theodor Fischer, 1901)

Palaeontographica (Theodor Fischer, 1921)

Palaeontographica Americana - Paleontological Research Institution (Ithaca, N.Y.) (Paleontological Research Institution, 1941)

Palaeontographica Bohemiae - Ceská akademie ved a umení. Trída 2. (1902)

Palaeontology - Palaeontological Association (Palaeontological Association, 1971)

Palaeontology - Palaeontological Association (Palaeontological Association, 1980)

Palaeontology - Palaeontological Association (Palaeontological Association, 1982)

Palaeontology - Palaeontological Association (Palaeontological Association, 1983)

Palaeontology - Palaeontological Association (Palaeontological Association, 1986)

Palaeontology - Palaeontological Association (Palaeontological Association, 1987)

Palaeontology - Palaeontological Association (Palaeontological Association, 1992)

Palaeontology - Palaeontological Association (Palaeontological Association, 1993)

Palaeontology - Palaeontological Association (Palaeontological Association, 1996)

Paläobiologie der cephalopoden aus der gruppe der dibranchiaten - Abel, Othenio, 1875 -1946 (G. Fischer, 1916)

Paläobiologie der Cephalopoden aus der Gruppe der Dibranchiaten - Abel, Othenio, 1875 -1946 (G. Fischer, 1916)

Paleontological bulletin / by Edward D. Cope - Cope, E. D. (Edward Drinker), 1840 -1897 (s.n.], 1872)

Pamphlets on forestry. Fish and game (1900)

Pantology; or, A systematic survey of human knowledge; proposing a classification of all its branches, and illustrating their history, relations, uses, and objects; with a synopsis of their leading facts and principles; and a select catalogue of books on all subjects, suitable for a cabinet library ... - Park, Roswell, 1807 -1869 (Hogan & Thompson, 1843)

Pflügers Archiv für die gesamte Physiologie des Menschen und der Tiere (M. Hager, 1922)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1878)

Philosophical transactions of the Royal Society of London - Royal Society (Great Britain) (Royal Society of London, 1882)

Phylogenetic systematics of extant chimaeroid fishes (Holocephali, Chimaeroidei) - Didier, Dominique A., 1965 - (American Museum of Natural History, 1995)

The pineal organ; the comparative anatomy of median and lateral eyes, with special reference to the origin of the pineal body; and a description of the human pineal organ considered from the clinical and surgical standpoints - Gladstone, Reginald John, 1865 - (Williams & Wilkins, 1940)

The Plagiostomia : Sharks, skates, and rays / by Samuel Garman ; with seventy-seven plates - Garman, Samuel, 1843 -1927 (Printed for the Museum, 1913)

A plan for an educational exhibit of fishes - Miner, Roy Waldo, 1875 -1955 (Govt. print. off, 1910)

Practical lessons in science - Scovell, J. T. (Josiah Thomas), 1841 - (The Werner Co, 1895)

Practical zoology for medical & junior students - Bonde, Cecil von, 1895 -1983 (W. Wood, 1922)

Preliminary report of the United States Geological Survey of Wyoming : and portions of contiguous territories, (being a second annual report of progress) - Geological; Geographical Survey of the Territories (U.S.) (Govt. Print. Off, 1872)

Preliminary report of the United States Geological Survey of Montana, and portions of adjacent territories : being a fifth annual report of progress - Geological; Geographical Survey of the Territories (U.S.) (Govt. Print. Off, 1872)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open court publishing company, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (Open Court Pub. Co, 1904)

The primary factors of organic evolution - Cope, E. D. (Edward Drinker), 1840 -1897 (The Open Court Publishing Company, 1896)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill, 1920)

Principles of animal biology - Shull, A. Franklin (Aaron Franklin), 1881 -1961 (McGraw-Hill book company, inc, 1946)

The principles of biology, by J. I. Hamaker - Hamaker, John Irvin, 1869 - (P. Blakiston, 1913)

The principles of biology - Hamaker, J. I. (John Irvin), 1869 - (P. Blakiston's Sons & Co, 1913)

Principles of zoölogy : a guide for beginners - Schiedt, Richard Francis Conrad, 1859 -1951 (Examiner Printing House, 1892)

Problems of evolution - Headley, F. W. (Frederick Webb), 1856 -1919 (Duckworth, 1900)

Proceedings - Dorset Natural History; Archaeological Society.

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1904)

Proceedings and transactions of the Royal Society of Canada. Délibérations et mémoires de la Société royale du Canada - Royal Society of Canada. (Société royale du Canada, 1907)

Proceedings - Dorset Natural History and Archaeological Society - Dorset Natural History; Archaeological Society. (1877)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1901)

Proceedings of the Academy of Natural Sciences of Philadelphia - Academy of Natural Sciences of Philadelphia. (Academy of Natural Sciences of Philadelphia, 1914)

Proceedings of the American Academy of Arts and Sciences - American Academy of Arts; Sciences. (Metcalf and Co, 1900)