BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



All the scientific and technical pu])lications of the Bureau of Plant Industry, which 

 was organized July 1, 1901, 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, Government Printing Office, Wash- 

 ington, D. C, is authorized by law to sell them at cost, and to him all applications for 

 these bulletins should be made, accompanied by a postal money order for the required 

 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 Wlieats. 1901. Price, 20 cents. 



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



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



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



7. The Algerian Din-um Wlieats. 1902. Price, 15 cents. 



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



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



10. ReceJrds 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, 15 cents. 



15. Forage Conditions on the Border of the Great Basin. 1902. Price, 55 cents. 



16. A Preliminary Study of the Germination of the Spores of Agaricus Campestris 



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 Tolsacco. 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. 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 Mango in Porto Rico. 1903. Price, 15 cents. 



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



30. Budding the Pecan. 1902. Price, 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. 



86. The "Bluing" and the "Red Rot" of the Pine. 1903. Price, 30 cents. 



37. Form&tion of the Spores in the Sporangia of Rhizopus Nigricans and of Phy- 



comyces Nitens. 1903. 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. 1903. Price, 15 cents. 



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



42. Three New Plant Introductions fi-om 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 R61e 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 Wlieat Varieties. 1903. Price, 10 cents. 



48. The Apple in Cold Storage. 1903. Price, 15 cents. 



49. The Culture of the Central American Rubber Tree. 1903. Price, 2f> cents. 



50. Wild Rice: Its Uses and Propagation. 1903. Price, 10 cents. 



51. Miscellaneous Papers. 1905. Price, 5 cents. 



52. Wither-Tip and other Diseases of Citrus Trees and Fruits Caused by Colleto- 



trichum Gloeosporioides. 1904. Price, 15 cents. 



[Continuod on page 3 of cover.] 

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