

BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



Tla- Bureau of I'laut Iu(Uv«try, wiiicli was organized JuH' 1; IfOl, inclu(ies-Teg<- 

 talde Pathol(»gical and Physiological Investigations, Botanical Inve.«tigat.ions and 

 Experiments, Grass and Forage Plant Investigations, Poniological Investigations, 

 and Experimental (hardens and Grounds, all of which were formerly separate Divi- 

 .-^ions, and also ^^eed ami Plant Introduction and Distribution, the Arlington Exper- 

 imental Farm, Tea Culture Investigations, and Domestic Sugar Investigations. 



Beginning with the date of organization of the Bureau, the several series of bulle- 

 tins of the varioas Divisions were discontinued, and all are now published as<>ne 

 series of the Bureau. A list of the Bulletins issued in the present series follow.-. 



Attention is directed Jto the fact that "the serial, scientific, and technical puWEica- 

 tions of the United States Department of Agriculture are not for general distribution. 

 All copies not re<iuire<l for official use are by law turned over to the Superintendent 

 of Documents, who is empowered to sell them at cost.'' .All applications for such 

 pubHcations should, therefore, l^e made to the Superintendent of Documents, (tia- 

 erument Printing Office, Washington, D. C. 



No. 1.' Tlie Relation of Lime and Magnesia to Plant ( trowth. lUUl. Price, 10 crnt.-^. 

 2. Spermatogenesis and Fecundation of Zamia. 1901. Price, 20 cents. 

 ;.. Macaroni Wheats. 1901. Price, 20 cents. 



4. Range Imi>rovement in Arizona. 1902. Price, 10 cents. 



5. Seeds and Plants Imported. Inventory No. 9. 1902. Price, 10 cent,':. 



6. A List of American Varieties of Peppers. 1902. Price, 10 cents. 



7. The Algerian Dururn Wheats. 1902. Price, 15 cents. 



S. A Collection of Fungi Prepf^red for Distribution. 1902. Price, 10 <^iils. 

 9. The North American Species of Spartina. 1902. Price, 10 cents. . 

 10. Records of Seed Distribution and Cooperative Experiments with Grasses and 



Forage Plants. 1902. Price, JO cents. 

 U. Johnson Grass. 1902. Price, 10 cents. 



12. Stock Ranges of Northwestern California. 1902. Price, 15 cents. 

 1.3. Experiments in Range Improvement in Central Texas: 1902. Price, 10 

 cents; 



14. Tlie Decay of Tlmtjer and .Methoils of Preventing It. 1902. Price, 55 cents. 



15. Forage Conditions on the Northern Border of the (ireat Basin. 1902. Price, 



15 cents. 



16. A Preliminary Study of the Germination of the Spores of Agaricus Cami)es- 



tris and Other Basidiomycetous Fungi. 1902. Price, 10 cents, 



17. Some Diseases of the Cowpea. 1902. Price, 10 cents. "' ■. 



18. Observations on the Mosaic Disease of Tol)acco. 1902. Price, 15 cent<. 



19. Kentucky Bluegrass Seed. 1902. Price, 10 cents. 



20. Manufacture of Semolina and ^facaroni. 1902. Price, 15 eenls. 



21. List of American Varieties of Vegetables. 1903. Price, 35 cents. 



22. Injurious Effects of Premature Pollmati<jn. 1902. Price, 10 cents. 



23. Berseem. 1902. Price, 15 cents. 



24. Unfermented Grape Must. ,1902. Piice, 10 cents, 



25. Miscellaneous Papers: I. The Seeds of Rescue Grass and Chess. II. Saragolla 



Wheat. III. Plant Introduction Notes from South Africa. IV. Gongres- 

 sional Seed and Plant^ Distribution Circulars, 1902-1903, 1903. Price, 

 15 cents. _ - 



26. Spanish Almonds. 1902.' Price) 15 cents. 



27. Letters on Agriculture in the West Indies, Spain^ and the Orient. 1902. 



Price, 15 cents. 



28. The :\Iango in Porto Rico. 1903. Price, 15 cents. 



29. The Effect of Black Rot on Turnips. 1903. Price, 15 cents. 



[Continued on page 3 of cover.] 



