The Alcohol Test in Relation to Milk

Collection and Preservation of Insects and Other Material for Use in the Study of Agriculture: Volumes 601-625

The Agricultural Outlook

Natal Grass: A Southern Perennial Hay Crop

The Sugar-beet Thrips

The Genus Calosoma: Including Studies of Seasonal Histories, Habits, and Economic Importance of American Species North of Mexico and of Several Introduced Species

Standard and Tentative Methods of Sampling and Testing Highway Materials: Recommended by the Second Conference of State Highway Testing Engineers and Chemists, Washington, D.C., Feb. 23-27, 1920, Issues 926-950