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Castration of young pigs
Strains of white burley tobacco resistant to root-rot
Vesicular stomatitis of horses and cattle
The temperature of the bee colony
The Mediterranean fruit fly in Hawaii
The Ripening, storage, and handling of apples
Irrigation requirements of the arable lands of the Great Basin
Field and crop labor in Georgia farms (coastal plain area)
Cotton or weevils
Development of cooperative shelter-belt demonstrations of the Northern Great Plains