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 classification and geographical distribution of the Mammalia, being a lecture on Sir Robert Reade's foundation, delivered before the University of Cambridge ... May 10, 1859. To which is added an appendix "On the gorilla," and "On the extinction and transmutation of species." - Owen, Richard, 1804 -1892 (J. W. Parker and son, 1859)

On the development and structure of the whale - Guldberg, G. A. (Gustav Adolph), 1854 -1908 (Grieg, 1894)

On the evolution of the Proboscidea - Andrews, Charles William, 1866 -1924 (1903)

On the form and structure of the Manatee (Manatus americanus) - Murie, James, 1832 -1925 (Zoological Society of London, 1872)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (Macmillan & Co, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (Macmillan, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (D. Appleton, 1871)

On the genesis of species - Mivart, St. George Jackson, 1827 -1900 (D. Appleton and company, 1871)

On the geology and natural history of the upper Missouri :Being the substance of a report made to Lieut. G.K. Warren, T.E. U.S.A - Hayden, F. V. (Ferdinand Vandeveer), 1829 -1887 (Printed by C. Sherman & son, 1862)

On the origin of species by the means of natural selection, or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (Odhams Press, 1872)

On the supposed presence of Miocene Tayassuidae and Dromomerycinae (Mammalia, Cetartiodactyla) in South America - Croft, Darin A. (American Museum of Natural History, 2021)

On whales, past and present and their probable origin. A discourse - Flower, William Henry, 1831 -1899 (1883)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1900)

The Oölogist for the student of birds, their nests and eggs - Lattin, Frank H. (Frank H. Lattin, 1901)

The orders of mammals - Gregory, William K. (William King), 1876 -1970 (The Trustees, 1910)

Organic evolution considered - Fairhurst, Alfred, 1843 -1921 (Christian publishing, 1897)

The origin and relationship of the large mammals of North America - Grant, Madison. (Reprinted from the eighth annual report of the New York Zoological Society, 1904)

The origin and relationship of the large mammals of North America - New York Zoological Society. (1904)

The origin of species - Darwin, Charles, 1809 -1882 (Books, Inc, 1900)

The origin of species - Darwin, Charles, 1809 -1882 (Literary Classics, 1900)

The origin of species - Darwin, Charles, 1809 -1882 (P.F. Collier, 1909)

The origin of species by means of natural selecti : or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (1904)

The origin of species by means of natural selection, or, the preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (John Murray, 1872)

The origin of species : by means of natural selection, or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton & Co, 1889)

The origin of species by means of natural selection, or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (A.L. Burt, 1899)

The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (J. Murray, 1888)

The origin of species by means of natural selection, or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (A.L. Burt, 1894)

The origin of species by means of natural selection, or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton, 1899)

The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (John Murray, 1880)

The origin of species by means of natural selection : or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (Merrill and Baker, 1900)

The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (J. Murray, 1902)

The origin of species by means of natural selection; or, The preservation of favoured races in the struggle for life - Darwin, Charles, 1809 -1882 (J. Murray, 1886)

The origin of species by means of natural selection; or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1909)

The origin of species by means of natural selection, or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1917)

The origin of species by means of natural selection; or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton and Company, 1889)

Origin of species by means of natural selection, or, The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (P. F. Collier, 1902)

The origin of species by means of natural selection; or, the preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (D. Appleton and company, 1915)

The origin of species by means of natural selection : or The preservation of favored races in the struggle for life - Darwin, Charles, 1809 -1882 (Hurst, 1872)