Content Description The USDA Division of Cereal Crops and Diseases Photograph Collection contains glass and acetate negatives, as well as black and white prints. Subjects include aspects of cereal crop classification, production, utilization, farm machinery, diseases, and pests in the United States and foreign countries. Crops pictured include corn, barley, oats, sorghum, sorgo, milo, millet, wheat, flax, rice, rye, and kafir. A number of the negatives were used in the Journal of Agricultural Research, U.S....