""Descriptions Of The Inferior Maxillary Bones Of Mastodons: In The Cabinet Of The American Philosophical Society"" is a book written by Isaac Hays in 1833. The book is a detailed description of the inferior maxillary bones of mastodons, which were discovered in the United States in the early 19th century. Hays, a physician and naturalist, was a member of the American Philosophical Society, which owned a collection of mastodon fossils. In the book,...