This collection consists primarily of a 1909 copy of The Genera of Fungi by Frederic Edward Clements (1875–1945). The volume was adressed by Clements to Dr. Shear (1865–1956), and contains Dr. Shear's bookplate inside the front cover. The volume is heavily annotated by Dr. Shear, containing corrections and notes intended for his second edition of the publication. It is accompanied by a folder containing notes removed from the volume, handwritten by Cornelius Lott Shear (1865–1956), and correspondence on transfers of the volume.