Studies of Tropical American Ferns. No. 4. By William R. Maxon William Ralph Maxon Published: 1913 Total Pages: 72 Get eBook
Studies of Tropical American Ferns. No. 6. By William R. Maxon William Ralph Maxon Published: 1916 Total Pages: 96 Get eBook
Two New Shrubs from Lower California Paul Carpenter Standley Published: 1912 Total Pages: 820 Get eBook
Index-catalogue of the Library of the Surgeon-General's Office, United States Army National Library of Medicine (U.S.) Published: 1925 Total Pages: 1116 Get eBook