REFERENCES
Circulars of the Bureau of Entomology. Dept. of Agriculture. List furnished on application.
Annual Loss Occasioned by Destructive Insects. Yearbook 1904.[C]
Value of Insect Parasitism to the American Farmer. Yearbook 1907.
House Flies. Dept. of Agriculture. Bulletin 71.
The Grasshopper Problem. Bulletin 84.
The Boll-Weevil Problem. Bulletin 344.
The Most Important Step in the Control of the Boll-Weevil. Bulletin 95.
The San Jose Scale. Yearbook 1902.
The Plum-Curculio. Bulletin 73.
The Apple Codling-Moth. Bulletin 41. Price 20c.
The Gipsy Moth and How to Control It. Bulletin 275.
The Brown-tail Moth and How to Control It. Bulletin 264.
The Spring Grain Aphis or Green-Bug. Bulletin 93.
The Army-Worm. Bulletin 4.
The Hessian Fly. Bulletin 70.
The Chinch-Bug. Bulletin 17.
The Principal Household Insects of the U. S. Bulletin 4.
Insects Affecting Domestic Animals. Bulletin 5.