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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
Practical helps in agriculture and nature study
British grasses and their employment in agriculture
Question box : answers from scientists at State agriculture experiment stations and foresters of the U.S. Department of Agriculture
Elementary lessons in the physics of agriculture