Henry G. Knight

• Accomplishments of the Bureau of Agricultural Chemistry and Engineering, U.S. Department of Agriculture
• Canning crops, home sirup making, and the chemist
• Chemists serve producers and users of honey
• Chemists serve producers of hay
• Citrus fruit
• Conserving our soil resources
• Cotton's place in the war
• For and against soil microbes
• New and better fertilizers at lower cost
• New knowledge of chemistry and soils
• New knowledge of soil fertility
• New sources of farm profits