BULLETINS OF THE BUREATJ OF PLANT INDUSTRY. 



The scientific and technical publications of\he 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 

 distril)Ut ion. The Superintendent of Documents, Government Printing Office, Wa.sh- 

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

 these liulletins should be made, accompanied by a postal money order for th<' ref|uir(>d 

 amount or by cash. 



No. 1. Relation of Lime and Magnesia to Plant Growth. 1901. Price, 10 cvnts. 



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. [Out of priui.] 



6. A List of Amc>rican Varieties of Peppers. 1902. Price, 10 cents. 

 7: The Algerian Durum Wlieats. 1902. Price, 15 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, etc. 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. Decay of Timber and Methods of Preventing It. 1902. Price, 55 cents. 



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



16. Gerrainfltion of tlie Spores of Agaricus Campestris, etc. 1902. [Out of print.] 



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. [Out of print.] 



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



23. Berseem. 1902. [Out of print.] 



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



25. Miscellaneous Papers. 1903. Price, 15 cents. 



26. Spanish Almonds. 1902. [Out of print.] 



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



28. The Mango in Porto Rico. 1903. [Out of print.] 



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. Pric-e, 1.0 ceitts. 



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



34. Silkworm F(k.(1 Plants. 1903. Price, 15 ceij|s. 



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



36. The "Bluing" of the Western Yellow Pine, etc. 1903. Price, 30 cents. 



37. Formation of the Spores in the Sporangia of Rhizopus Nigricans and of Phyco- 



myces 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 CommercialGrading 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. Pliysiological R61e of Mineral Nutrients in Plants. 1903. Price, 5 cents. 



46. Propagation of Tropical Fruit Trees, etc. 1903. Price, 10 cents. 



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



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



49. Culture of the Central American Rubber Tree. 1903. Price, 25 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 CoUeto- 



trichum Gloeosporioides. 1904. Price, 15 cents. 



[Continued on page 3 of cover.] 

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