Drying crude drugs
- Source:
- Farmers' bulletin (United States. Dept. of Agriculture) ; no. 1231 1921
- Year:
- 1921
- Subject:
- Drying, Drugs, drying, drying equipment, drug crops, medicinal plants, and solar drying
- Format:
- 16 p. : ill. ; 23 cm.
- Language:
- English
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection