Part 18

Report on the Gipsy Moth Work in New England. (Department Bulletin 204.) Price, 30 cents.

A Disease of Pines Caused by Cronartium pyriforme. (Department Bulletin 247.) Price, 5 cents.

Food Plants of the Gipsy Moth in America. (Department Bulletin 250.) Price, 10 cents.

Dispersion of Gipsy Moth Larvæ by the Wind. (Department Bulletin 273.) Price, 15 cents.

The Cottonwood Borer. (Department Bulletin 424.) Price, 5 cents.

Solid-Stream Spraying against the Gipsy Moth and the Brown-Tail Moth in New England. (Department Bulletin 4.80.) Price, 15 cents.

Protection from the Locust Borer. (Department Bulletin 787.) Price, 5 cents.

Principal Insects Liable to be Distributed on Nursery Stock. (Entomology Bulletin 34, n. s.) Price, 5 cents.

The Locust Borer. (Entomology Bulletin 58, part 1.) Price, 5 cents.

Additional Data on the Locust Borer. (Entomology Bulletin 58, part 3.) Price, 5 cents.

The San Jose or Chinese Scale. (Entomology Bulletin 62.) Price, 25 cents.

Report on Field Work against the Gipsy Moth and the Brown-Tail Moth. (Entomology Bulletin 87.) Price, 35 cents.

The Importation into the United States of the Parasites of the Gipsy Moth and the Brown-Tail Moth. (Entomology Bulletin 91.) Price, 65 cents.

The Dispersion of the Gipsy Moth. (Entomology Bulletin 119.) Price, 20 cents.

The Green-Striped Maple Worm. (Entomology Circular 110.) Price, 5 cents.

The Oak Pruner. (Entomology Circular 130.) Price, 5 cents.

The Dying Hickory Trees: Cause and Remedy. (Entomology Circular 144.) Price, 5 cents.

Flour Paste as a Control for Red Spiders and as a Spreader for Contact Insecticides. (Entomology Circular 166.) Price, 5 cents.

Three Undescribed Heart-Rots of Hardwood Trees, Especially of Oak. (Journal of Agricultural Research, vol. 1, No. 2.) Price, 25 cents.

A Serious Disease in Forest Nurseries Caused by Peridermium filamentosum. (Journal of Agricultural Research, vol. v, No. 17.) Price, 10 cents.

The Chestnut Bark Disease. (Separate 598, from Yearbook of the Department of Agriculture for 1918.) Price, 10 cents.

Practical Tree Surgery. (Separate 622, from Yearbook of the Department of Agriculture for 1913.) Price, 10 cents.

Forest Tree Diseases Common in California and Nevada. (Forest Service Unnumbered Publication.) Price, 25 cents.

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