BULIiETINS OF THE BTJREAXJ OF PI.AITT lNl)tJSTK.Y. 



The scientific and technical publications 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 nn this series are not for general distribution. 

 The Superintendent of Documents, Government Printing Office, Washington, 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. Bulletins to which no price is attached 

 can not be furnished. 

 No. 1. The Relation of Lime and Magnesia to Plant Growth. 1901. Price, 10 cents. r 



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



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



4. Range Improvement in Arizona. 1901. Price, 10 cents. 



5. Seeds and Plants Imported. Inventory No. 9. 1902. 



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



7. The Algerian Durum Wheats. 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, etc. 1902. Price, 10 cents. 



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



12. Stock Ranges of Northwestern California. 1902. Price, 1-5 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. 1902. Price, iS cents. 



16. Germination of the Spores of Agaricus Campestris, etc. 1902. 



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



18. Observations on the Mosaic Disease of Tobacco. 1902. Price, 15 cents. 



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



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



21. List of American Varieties of Vegetables. 1903. 



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



23. Berseem: The Great Forage and Soiling Crop of the Nile- Valley. 1902. 

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



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



26. Spanish Almonds and Their Introduction into America. 1902. i 



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



28. The Mango in Porto Rico. 1903. 



29. Tlie 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. 



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 Phycomyces 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 Com. 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. Physiological Role 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. Tlie 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. 



[Continued on page 3 of cover.] 

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