United States. Bureau of Plant Industry, Soils, and Agricultural Engineering

Subjects

Agriculture, Research, Soil surveys, Soils, Field crops, Agronomy, Crop production, Maps, Plant cultural practices, Agricultural research, Diseases and pests, Farmhouses, Methodology, United States, United States. Bureau of Plant Industry, Soils, and Agricultural Engineering, Animal feeding, Beans, Care of Trees, Classification, DDT (Insecticide), Designs and plans, Directories, Evergreens, Farm buildings, Grain as feed

Places

United States, Tennessee, Virginia, Bedford County, Culpeper County, Culpeper County (Va.), Grainger County, Hamblen County, Humphreys County, North Carolina, Scott County, Scott County (Va.), Tennessee (États-Unis), Yancey County, États-Unis