Series 2: Published Papers & Unpublished Manuscripts, 1870 - 1945

Series 2 (Boxes 6 to 21) contains materials related to Osborn’s published papers, articles, and unpublished manuscripts, including substantial works like “Age of Mammals” and his Titanotheres monograph, as well as other writings on horses, Proboscidea, evolution, fauna, flora, vertebrate paleontology, and other subjects. Materials include notes, addresses given or written by Osborn, revisions, correspondence, illustrations, photographs, notebooks, and more. It is arranged alphabetically, then chronologically.