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The Two Most Abundant Pulvinarias on Maple. B3' L. O. Howard. Ento- 

 mologist. Pp. 7-2'S, figs. 17. reprint from Bulletin No. 22, Division of 

 Entomology. March. 1900 lOO 



The Insects'to Which the Name "Kissing Bug" Became Applied During 

 the Summer of 1899. By L. O. Howard, Entomologist. Pp. 24-30, figs. 

 7. reprint from Bulletin 22, new series, Division of Entomology. March, 

 1900. -.- --. - 100 



Insect Control in Riverside, California. By Felix G. Havens. Pp. 83-88, 

 reprint from Bulletin 22, new series. Division of Entomology. March, 

 1900 .. 100 



The Hessian Fly. By C. L. Marlatt, First Assistant Entomologist. Pp. 4. 

 Circular No. 12, second series. Revised edition. April, 1900 — 5,000 



Some Insects Injurious to Stored Grain. By F. H. Chittenden, Assistant 

 Entomologist.' Pp. 24. figs. 18. Farmers' Bulletin No. 45. Revised edi- 

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Some Insects Injurious to Garden Crops. A series of Articles Dealing 

 with Insects of This Class. Prepared under the direction of the Ento- 

 mologist, bv F. H. Chittenden, Assistant Entomologist. Pp. 92, figs. 23. 

 Bulletin 23." new series. May, 1900. Price, 10 cents. , 5,000 



Important Insecticides: Directions for Their Preparation and Use. By 

 C. L. Marlatt, M.S.. First Assistant Entomologist. Pp. 32. figs. 3. Far- 

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Contributions Toward a Monograph of the American Aleuroida?. By 

 A. L. Quaintance. M. S. . Biologist and Horticulturist of the Georgia Agri- 

 cultural E.-cperiment Station, Experiment. Ga. The Red Spiders of the 

 United States (Tetranychus and Stigmaeus). By Nathan Banks. M. S. , 

 Assistant. Division of Entomology, U. S. Department of Agriculture. 

 Prepared under the direction of the Entomologist. Pp. 79. pis. 8, figs. 

 16. Bulletin No. 8, technical series. June. 1900. Price, 10 cents 2,500 



Insects Affecting the Cotton Plant. By L. O. Howard, Ph. D., Entomolo- 

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 of Experiment Stations.) Pp. 32^ figs. 18. Farmers" Bulletin No. 47. 

 (Reprint.) Jane,1900 .. ... -.- 10,000 



Three Insect Enemies of Shade Trees. By L. O. Howard, Entomologist. 

 (Reprinted, with some annotations by the author, from the Yearbook 

 of the Department of Agriculture for 1895. ) Pp. 30, figs. 1 1 . Farmers' 

 Bulletin No. 99. (Reprint.) Jime. 1900 10.000 



OFFICE OF EXPERIMENT STATIONS. 



Ex])eriment Station Record (a condensed record of the contents of the 

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Vol.XI.No. 1. Pp. vi, 1-100. August,1899 4,500 



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Description of a New Respiration Calorimeter and Experiments on the 

 Conservation of Energy in the Human Body. By W. O. Atwater, 

 Ph. D., Pi'ofessor of Chemistry, Wesleyan University, and E. B. Rosa, 

 Ph. D., Professor of Physics, Wesleyan University. Pp. 94, pis. 8, figs. 



12. Bulletin No. '33. July, 1899. Price, 10 cents .-- 2,000 



Reprint, April, 1300 500 



Some Results of Dietary Studies in the United States. By A. P. Bryant, 

 of the Office of Experiment Stations. Pp. ii, 439-452, from Yearbook 



for 1898. July, 1899 ... •. .... 500 



Reprint, February, 1900 1. 000 



Selection and Its Eff'ect on Cultivated Plants. By Henry de Vilmorin. 

 Pp. 19, from Experiment Station Record, Vol. XI, No. 1. August, 

 1899 200 



