ra) PUBLICATIONS OF BUREAU OF ENTOMOLOGY. 
No. 23. Some insects injurious to garden crops. A series of articles dealing 
with insects of this class. By F. H. Chittenden. pp. 92, figs. 23. 1900. 
Price 10 cents. Postage 4 cents. 
No. 24. A list of works on North American entomology. Compiled... by 
Nathan Banks. pp. 95. 1900. Price 10 cents. Postage 4 cents. 
No. 25. Notes on the mosquitoes of the United States: giving some account of 
their structure and biology, with remarks on remedies. By L. O. Howard. 
pp. 70, figs. 22. 1900. Price 10 cents. Postage 3 cents. 
No. 26. Proceedings of the twelfth annual meeting of the Association of Eco- 
nomic Entomologists. pp. 102, pls. 2. 1900. Price 10 cents. Postage 4 
cents. 
No. 27. Some insects injurious to the violet, rose, and other ornamental plants. 
A collection of articles dealing with insects of this class. By F. H. Chit- 
tenden. pp. 114, figs. 29, pls. 4. 1901. Out of print. 
Same, revised edition. pp. 114, figs. 29, pls. 4. 1901. Price 10 cents. Postage 
4 cents. ic 
No. 28. Insect enemies of spruce in the Northeast. A popular account of 
results of special investigations, with recommendations for preventing 
losses. ... By A. D. Hopkins. pp. 80, figs. 2, pls. 16. 1901. Price 10 
cents. Postage 5 cents. 
No. 29. The fall army worm [Laphygma frugiperda S. & A.] and variegated 
eutworm [Peridroma saucia Hiibn.]. By F. H. Chittenden. pp. 64, figs. 11. 
1901. Price 5 cents. Postage 3 cents. 
No. 30. Some miscellaneous results of the work of the Division of Entomology. 
V. Prepared under the direction of L. O. Howard, Entomologist. pp. 98, 
figs. 29, pls. 2. 1901. Price 10 cents. Postage 4 cents. 
No. 31. Proceedings of the thirteenth annual meeting of the Association of 
Economic Entomologists [1901]. pp. 108, figs. 4, pls. 2. 1902. Price 10 
cents. Postage 4 cents. 
No. 32. Insect enemies of the pine in the Black Hills Forest Reserve. An 
account of results of special investigations, with recommendations for pre- 
venting losses. By A. D. Hopkins. pp. 24, figs. 5, pls. 7. 1902. Price 10 
cents. Postage 2 cents. 
No. 33. Some insects injurious to vegetable crops. A series of articles dealing 
with insects of this class. By F. H. Chittenden. pp. 117, figs. 30. 1902. 
Price 10 cents. Postage 4 cents. 
No. 34. The principal insects liable to be distributed on nursery stock. By 
Nathan Banks. pp. 46, figs. 47. 1902. Price 5 cents. Postage 2 cents. 
No. 35. Report on codling-moth [Carpocapsa pomonella L.] investigations in 
the Northwest during 1901. By C. B. Simpson. pp. 29, fig. 1, pls. 5. 1902. 
Price 10 cents. Postage 2 cents. 
No. 36. An index to Bulletins Nos. 1-80 (new series) (1896-1901) of the Divi- 
sion of Entomology. By Nathan Banks. pp. 64. 1902. Price 5 cents. 
Postage 38 cents. 
No. 37. Proceedings of the fourteenth annual meeting of the Association of 
Economic Entomologists. pp. 127, figs. 2, pl. 1. 1902. Price 10 cents. Post- 
age 5 cents. 
No. 38. Some miscellaneous results of the work of the Division of Entomology. 
VI. Prepared under the direction of the Entomologist. pp. 110, figs. 9, pls. 
2. 1902. Price 10 cents. Postage 4 cents.- 
No. 39. The culture of the mulberry silkworm [Bombyx mori I.]. By Henri- 
etta Aiken Kelly. pp. 32, figs. 15. 1908. Out of print. 
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