BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



The Bureau of riant Industry, which was organized July 1, 1901, includes 

 Vegetable Pathological and Physiological Investigations, Potanical Investiga- 

 tions and Exi)crinients, Grass and Forage Plant Investigations, Pomological 

 Investigations, and Experimental Gardens and Grounds, all of which were for- 

 merly separate Divisions, and also Seed and Plant Introduction and Distribution, 

 the Arlington Experimental Farm, tea Culture Investigations, and Domesti<- 

 J?ugar Inv<>stigationR. 



P.eginning with the date of organization of the Bureau, the several series o'f 

 Bulletins of the various Divisions were discontinued, and all are now published 

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

 follows. 



Attention is directed to the fact that " the serial, scientific, and technical i)nb- 

 lications of the United States Department of Agriculture are not for general dis- 

 (rilintion. All copies not required for otticial use are by law turned over to the 

 Sui)erintendent of Documents, who is empowered to sell them at cost." All 

 applications for such publications should therefore be made to the Superintend- 

 ent of Documents, Governnjent I'rinting OtRce, Washington, D. C. 



No. 1. The Ptelation of Lime and Magnesia to Plant Growth. 1901. Price, 10 

 cents. 



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



3. Macaroni Wheats. 1901. I'rice, 20 cents. 



4. Range Improvement in Arizona. 1902. Price, 10 cents. 



5. Seeds and Plants Imported. Inventory No. 9. 1902. Price, 10 cents. 

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



7. The Algerian Durum AA'heats. 1902. Price, 1.5 cents. 



8. A Collection of Fungi Prepared for Distribution. 1902. Price, 10 cents. 



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, 10 cents. 



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



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



13. Range Improvement in Central Texas. 1902. Price, 10 cents. 



14. The^Decay of Timber and Methods of Preventing It. 1902. Price, 55 



cents. 



15. Forage Conditions on the Northern Border of the Great Basin. 1902. 



Price, 15 cents. 



16. A Preliminary Study of the Germination of the Spores of Agaricus Cam- 



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

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



18. Observation's on the Mosaic Disease of Tobacco. 1902. Price, 15 cents. 



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



20. Manufacture of Semolina and Macaroni. 1902. Price, 15 cents. 



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



22. Injurious Effects of Premature Pollination. 1902. Price, 10 cents. 

 2.'>. Borseem. 1902. Price, 15 cents. 



24. Unfermented Grai)e Must. 1902. Price, 10 cents. 



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



Saragolla Wheat. III. Plant Introduction Notes from South Africa. 

 IV. Congressional Seed and Plant Distribution Circulars. 1903. 

 Price, 15 cents. 

 20. Spanish Almonds. 1902, Price, 15 cents. 



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



Price, 15 cents. 



28. The Mango in Porto Rico. 190.3. Price, 15 cents. 



29. The ICffect of Blade Rot on Turnips. 1903. Price, 15 cents. 



30. Budding the I'ecan. 1902. I'rice, 10 cents. 



31. Cultivated Forage Crops of the Northwestern States. 1902. Price 10 



cents, 



[Continued on ijagc 3 of cover.] 



