Content Description The USDA Bureau of Plant Industry Horticultural and Pomological Investigations Records contain black and white photographs, acetate and glass negatives, glass slides, drawings, note cards, project reports, research records, and correspondence related to research on small fruits and nuts from the U.S. Department of Agriculture (USDA) Fruit Laboratory. Examples of topics include experimental fruits, fruit varieties, plant anatomy, breeding, crossing, diseases, insects, irrigation, handling,...