The Library's research collection is made up of more than 450,000 volumes, as well electronic resources and microform materials. Subject areas include anthropology, astronomy, geology, paleontology, zoology and, to some extent, exploration and travel, history of science, and museology. This collection provides a continuous record of the natural world dating back to the beginnings of Western science in the 15th century, and is particularly strong in the historical materials important to research in systematics.

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