Renovation of Worn-out Soils. Dept. of Agriculture Bulletin, 245.
Soil Fertility. Dept. of Agriculture Bulletin, 257.
Management of Soils to Conserve Moisture. Dept. of Agriculture Bulletin, 266.
Fertilizers for Cotton Soils. Bureau of Soils Bulletin, 62.
Work of the Bureau of Soils. Bureau of Soils Bulletin.
Exhaustion and Abandonment of Soils. Bureau of Soils Bulletin. Whitney, 5c.
Phosphorus. Illinois Agricultural Experiment Station Bulletin.
The Present Status of the Nitrogen Problem. Yearbook Dept. of Agriculture Reprint, 411.
The Search for Leguminous Forage Crops. Yearbook Dept. of Agriculture Reprint, 478.
Leguminous Crops. Yearbook Dept. of Agriculture Bulletin, 278.