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Publications of the Bureau of Plant Industry
The water hyacinth, and its relation to navigation in Florida
A national lumber and forest policy
A list of works on North American entomology
Bird day in the schools
Soils of the United States and their use-- VII. The Hagerstown loam
Manganese as a fertilizer
Soils of the eastern United States and their use-- XXIX. The Crowley silt loam
Soils of the eastern United States and their use-- IX. The Miami clay loam
Soils of the eastern United States and their use-- XXXVI. The Volusia silt loam