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Equipment in agriculture, nature study, and geography
[Letter to Librarian, U.S. Department of Agriculture]
The relations of agriculture to other sciences
A treatise on agriculture and rural affairs
Elements of agriculture, for use in schools
Colchicine in agriculture, medicine, biology, and chemistry
The principles of agriculture for common schools
Wyoming birds and their value to agriculture
Agriculture in the tropics; an elementary treatise
Agriculture of the United States in 1860