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Scientific agriculture; or, The elements of chemistry, geology, botany and meteorology, applied to practical agriculture
Insects; the yearbook of agriculture,1952
Miscellaneous studies in agriculture and biology
Insects injurious to agriculture in Japan
A text-book of tropical agriculture
Announcement of correspondence courses in agriculture
Productive agriculture, by John H. Gehrs
Department of agriculture in the war
Manual of agriculture, horticulture, and arboriculture
Elements of scientific and practical agriculture