Biology of the foxglove aphid in the Northeastern United States /

Cover title.

Stem sawflies of economic importance in grain crops in the United States,

"Literature cited": p. 37-50.

Aggregate stability of soils from Western United States and Canada; measurement procedure, correlations with soil constituents

Cover title.

Method of testing the capacity of fruit and vegetable containers under the United States standard container acts /

"May, 1930."

Feeding and management investigations at the United States Dairy Experiment Station at Beltsville, MD., 1930 report /

"January, 1932."

The Crop and livestock reporting service of the United States /

Caption title.

Feeding and management investigations at the United States Dairy Experiment Station at Beltsville, Md., 1932 report /

"December 1933."

Macrolepidoptera and their parasites reared from field collections in the northeastern part of the United States /

Contribution from Bureau of Entomology.

Inspection of United States wheat exported through Canadian ports /

Caption title.

Handbook of United States standards for grading and marketing fresh fruits and vegetables /

Cover title.

Forest trees and forest regions of the United States /

Contribution from Forest Service.

Forest trees and forest regions of the United States /

Originally issued Jan. 1936.

Development and significance of the great soil groups of the United States /

Contribution from Bureau of Chemistry and Soils.

A graphic summary of physical features and land utilization in the United States /

"Issued May 1937."

Work of the United States Forest Service /

"This publication supersede3s Department Circular 211, Government Forest Work, issued in April 1922."