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BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



All the scientific and technical i>ul)lic:itions of the Bureau of IMaut Inaustry. 

 which was or.u'aiiized July 1. 1001. are issued in a single series of bulletins, a 

 list of which follows. 



Attention is directed to the fact that the publications in this series are not 

 for general distribution. The Superintendent of Documents. (loverniuent Print- 

 ing Ottice. Washington, D. C, is authorized by law to sell them at cost, and to 

 him all applit-ations for these bulletins should be made, accompanied l)y a pos- 

 tal money order for the reciuired amount or by cash. 

 No. 1. The Relation 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. Price. 20 cents. 



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



5. Seeds and Plants Imported. Inventory No. 9. 1902. Priee; 10 cents. 

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



7. The Algerian Durum Wheats. 1902. Price. IT) cents. 



8. A Collection of Fungi prepared for Distribution. 1902. I'rice. 10 cents. 



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



10. Records of Seed Distrilnition 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 Border of the Great Basin. 1!)02. Pric-e. 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. Observations 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 Vegetables. 1903. Price, 35 cents. 



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



23. Berseem. 1902. Price, 15 cents. 



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



25. Miscellaneous Papers : I. The Seeds of Rescue Grass and Chess. 11. 



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

 IV. Congressional Seed and Plant Distribution Circulars. 1903. Price, 

 15 cents. 



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



27. Letters on Agriculture in the West Indies, etc. 1902. Price. 15 cents. 



28. The iSIango in Porto Rico. 1903. Price. 15 cents. 



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



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



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



32. A Disease of the White Ash. 1903. Price, 10 cents. 



33. North American Species of Leptochloa. 1903. Price. 15 cents. 



34. Silkworm Food Plants. 1903. Price, 15 cents. 



35. Recent Foreign Explorations. 1903. Price, 15 cents. 



36. The •* Bluing " and the " Red Rot " of the Pine. 1903. Price. 30 cents. 



37. Formation of the Siiores in the Sporangia of Rhizopus Nigricans and of 



Phycomyces Nitens. 190:>. Price. 15 cents. 



38. Forage Conditions in Eastern Washington, etc. 1903. Price. 15 cents. 



39. The Propagation of the Easter Lily from Seed. 1903. Price, 10 cents. 



40. Cold Storage with Reference to the Pear and Peach. 1003. Price, 15 cents. 



41. The Commercial Grading of Corn. 1903. Price. 10 cents. 



42. Three New Plant Introductions from Japan. 1903. Price, 10 cents. 



43. Japanese Bamboos. 1903. Price, 10 cents. 



44. The Bitter-^Rot of Apples. 1903. Price, 15 cents. 



45. The Physiological Role of Mineral Nutrients in Plants. 1903. Price, 5 



cents. 



46. The Propagation of Tropical Fruit Trees and Other Plants. 1903. 



Price, 10 cents. 



47. The Description of Wheat Varieties. 1903. Price. 10 cents. 



[Continued on page 3 of cover.] 

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