American Medicinal Plants of Commercial Importance

American Medicinal Plants of Commercial Importance

Farmers' Bulletin: Issue 1555

Harvesting Pyrethrum

Farmers' Bulletin: Issue 1555

Goldenseal Under Cultivation

Methods of Extracting Volatile Oils from Plant Material and the Production of Such Oils in the United States

Some Effects of Selection on the Production of Alkaloids in Belladonna

Comparison of Corn Oils Obtained by Expeller and Benzol Extraction Methods

Methods of Extracting Volatile Oils from Plant Material and the Production of Such Oils in the United States

The Production and Utilization of Corn Oil in the United States

Goldenseal Under Cultivation

Farmers' Bulletin: Issue 1555

Utilization of Almonds for Various Food Products

Plants for Insecticides and Rodenticides

Sumac: Its Collection and Culture as a Source of Tannin

Medicinal Plants of Tropical and Subtropical Regions

Experiments on the Processing and Storing of Deglet Noor Dates in California

Some Factors Affecting the Keeping Qualities of American Lemons

Sumac: Its Collection and Culture as a Source of Tanning