| Hornaday, W.T., 1930. Popular official guide to the New York Zoological Park, 22nd ed. New York, Zoological Society
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| Hornaday, W.T., 1924. Threatened quick extinction of the white rhinoceroses. Bulletin of the New York Zoological Society 27 (1): 12-15
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| Hornaday, W.T., 1923. Popular official guide to the New York Zoological Park, 18th ed. New York, Zoological Society
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| Hornaday, W.T., 1922. Popular official guide to the New York Zoological Park, 17th ed. New York, Zoological Society
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| Hornaday, W.T., 1922. The minds and manners of wild animals; a book of personal observations. New York, C. Scribner
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| Hornaday, W.T., 1919. Citizens of the jungle: the Indian rhinoceros. The Mentor 7 (16): 189-201, select pages, 2 figs.
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| Hornaday, W.T., 1918. Popular official guide to the New York Zoological Park, 15th ed. New York, Zoological Society, pp. 1-192
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| Hornaday, W.T., 1915. Popular official guide to the New York Zoological Park, 13th ed. New York, Zoological Society
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| Hornaday, W.T., 1913. Our vanishing wild life: its extermination and preservation. New York, New York Zoological Society, pp. i-xviii, 1-412
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| Hornaday, W.T., 1913. Popular official guide to the New York Zoological Park, 12th ed. New York, Zoological Society
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| Hornaday, W.T., 1911. Our white rhinoceros head. Bulletin of the New York Zoological Society 46: 782, fig. 1
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| Hornaday, W.T., 1911. Popular official guide to the New York Zoological Park, 11th ed. New York, Zoological Society
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| Hornaday, W.T., 1909. Popular official guide to the New York Zoological Park, 10th ed. New York, Zoological Society
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