The new natural history - Lydekker, Richard, 1849 -1915 (Merrill, 1901)

... New species of North American Coleoptera - LeConte, John L. (John Lawrence), 1825 -1883 (Smithsonian institution, 1863)

New York State Museum bulletin - New York State Museum. (University of the State of New York, 1917)

New Zealand Mud Snails in the Darlington Ditch, Cobblestone Fishing Access Site on the Madison River - Montana. Department of Fish, Wildlife,; Parks (Montana Fish, Wildlife & Parks, 2001)

Niederländisches Archiv für Zoologie (A.C. Kruseman; Leiden : E.J. Brill; Leipzig : C.F. Winter, 1879)

Nomenclator zoologicus. An alphabetical list of all generic names that have been employed by naturalists for recent and fossil animals from the earliest times to the close of the year 1879 ... - Scudder, Samuel Hubbard, 1837 -1911 (Govt. Print. Off, 1882)

Nomenclator zoologicus : continens nomina systematica generum animalium tam viventium quam fossilium, secundum ordinem alphabeticum disposita, adjectis auctoribus, libris, in quibus reperiuntur, anno editionis, etymologia et familiis, ad quas pertinent, in singulis classibus - Agassiz, Louis, 1807 -1873 (Jent et Gassmann, 1842)

Nomenclatoris zoologici index universalis : continens nomina systematica classium, ordinum, familiarum et generum animalium omnium ... homonymiis plantarum - Agassiz, Louis, 1807 -1873 (Sumptibus Jent et Gassman, 1848)

Nomina conservanda - Gesellschaft Naturforschender Freunde zu Berlin. (Gesellschaft naturforschender Freunde zu Berlin, 1915)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1901)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1909)

Normentafeln zur Entwicklungsgeschichte der Wirbelthiere ... - Keibel, Franz, 1861 -1929 (G. Fischer, 1911)

North American geology and paæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist Book Concern], 1889)

North American geology and palaeontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([s.n.], 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 ([Western Methodist book concern], 1889)

North American geology and palæontology for the use of amateurs, students, and scientists - Miller, S. A. (Samuel Almond), 1836 -1897 (Western Methodist Book Concern, 1889)

Notes on the North American ganoids Amia, Lepidosteus, Acipenser, and Polyodon, with three plates - Wilder, Burt G. (Burt Green), 1841 -1925 (s.n.], 1876)

Nouveaux éléments d'histoire naturelle médicale : comprenant des notions générales sur la minéralogie, la zoologie et la botanique, l'histoire et les propriétés des animaux et des végétaux utiles ou nuisibles à l'homme, soit par eux-mèmes, soit par leurs produits - Cauvet, D. (Désiré), 1827 -1890 (J.B. Baillière, 1877)

Nouvelles archives du Muséum d'histoire naturelle - Muséum national d'histoire naturelle (France) (Masson et Cie, 1880)

Nouvelles suites à Buffon (Roret, 1854)

Nouvelles suites à Buffon (Roret, 1870)

Nova acta Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (E. Blochmanni et Filii, 1907)

Novorum actorum Academiae Caesareae Leopoldino-Carolinae Germanicae Naturae Curiosorum - Kaiserlich Leopoldinisch-Carolinische Deutsche Akademie der Naturforscher (Friedrich Frommann, 1863)

Observations on fish scales - Cockerell, Theodore D. A. (Theodore Dru Alison), 1866 -1948 (Govt. print. off, 1913)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1890)

Occasional papers of the California Academy of Sciences - California Academy of Sciences (California Academy of Sciences, 1979)

Odontography : or a treatise on the comparative anatomy of the teeth, their physiological relations, mode of development and microscopic structure, in the vertebrate animals - Owen, Richard, 1804 -1892 (Hippolyte Bailliere, 1840)

Odontography; or, A treatise on the comparative anatomy of the teeth; their physiological relations, mode of development, and microscopic structure, in the vertebrate animals - Owen, Richard, 1804 -1892 (H. Baillière, 1840)

Öfversigt af Finska vetenskaps-societetens förhandlingar - Suomen Tiedeseura (s.n.], 1863)

Om lydorganer hos fiske : En physiologisk og comparativanatomisk undersøgelse - Sørensen, William, 1848 -1916 (V. Thaning & Appels boghandel, trykt hos J.H. Schultz, 1884)

On a lymphoid structure lying over the myelencephalon of Lepisosteus - Chandler, Asa C. (Asa Crawford), 1891 -1958 (The University press, 1911)

On mammalian descent. Being nine lectures delivered in the theatre of the Royal College of Surgeons during February, 1884 - Parker, William Kitchen William Kitchen Parker 1823 -1890 (Griffin, 1885)

On mammalian descent; the Hunterian Lectures for 1884; being nine lectures delivered in the theatre of the Royal College of Surgeons during February, 1884 - Parker, William Kitchen William Kitchen Parker 1823 -1890 (Charles Griffin, 1885)

On mammalian descent the Hunterian Lectures for 1884 : being nine lectures delivered in the theatre of the Royal College of Surgeons during February, 1884 - Parker, William Kitchen William Kitchen Parker 1823 -1890 (C. Griffin, 1885)

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 archetype and homologies of the vertebrate skeleton - Owen, Richard, 1804 -1892 (John Van Voorst, 1848)

On the deep and shallow water marine fauna of the Kerguelen Region of the Great Southern Ocean - Murray, John, Sir, 1841 -1914 (Robert Grant & Son, 1896)

On the law of irreversible evolution - Miller, Gerrit S. Jr. (Gerrit Smith), 1869 -1956 (Govt. print. off, 1920)

On the nature of limbs - Owen, Richard, 1804 -1892 (John Van Voorst, 1849)

On the young stages of some osseous fishes. I-III ... - Agassiz, Alexander, 1835 -1910 (1882)

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

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 vertebrates - Gaskell, Walter Holbrook, 1847 -1914 (Longmans, Green, 1908)

The origin of vertebrates - Gaskell, Walter Holbrook, 1847 -1914 (Longmans, Green, and co, 1908)

[Orr's Circle of the sciences. A series of treatises on the principles of science, with their application to practical pursuits. Organic nature ... - Owen, Richard, 1804 -1892 (W.S. Orr, 1854)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1901)

The Ottawa naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1902)

The outline of science : a plain story simply told - Thomson, J. Arthur (John Arthur), 1861 -1933 (G. P. Putnam's sons, 1922)

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

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (D. Appleton and company, 1914)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (Constable, 1912)

Outlines of evolutionary biology - Dendy, Arthur, 1865 -1925 (D. Appleton and company, 1912)

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 (Pentland, 1899)

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

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

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

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 (D. Appleton & Co, 1895)