2,574 titles (about 6,000 vols.) arranged in an author list, serial list and subject index. "A second contribution toward a subject catalogue of the library."

The first detailed comparative and anatomical study of aquatic flowering plants, first published in 1920.

"Collection of incunabula and early medical prints in the library of the Surgeon-general's office, U.S. Army": Ser. 3, v. 10, p. 1415-1436.

The world's most comprehensive, well documented, and well illustrated book on this subject, with 445 photographs and illustrations. Plus an extensive index.