BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



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 in this series are not for gen- 

 eral distribution. The Superintendent of Documents, Government Printing Office, 

 Washington, D. C, is authorized by law to sell them at cost, and to him all applica- 

 tions for these bulletins should be made, accompamed by a postal money order for 

 the required amount or by cash. 



No. 1. 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 Im}>rovement in Arizona. 1901. Price, 10 cents. 



5. Seeds and Plants Imported. Inventory So. 9. 1902. [Exhausted.] 



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



7. The Algerian Durum Wheats. 1902. Price, 15 cents. 



8. A Collection of Fungi Prepared for Distribution. 1902. [Exhausted.] 



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



10. Records of Seed Distriljution, etc. 1902. Price, 10 cents. 



11. Johnson Gra.ss. 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 :Method,s of Preventing It. 1902. [Exhausted.] 



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



16. Germination of the Spores of Agaricus Campestris, etc. 1902. [Exhausted.] 



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



18. Observations on the Mosaic Disease of Tobacco. 1902. [Exhausted.] 



19. Kentucky Bluegrass Seed. 1902. [Exhausted.] 



20. iSIanufacture of Semolina an<l ^Macaroni. 1902. Price, 15 centa. 



21. List of American Varieties of Vegetables. 1903. [Exhausted.] 



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



23. Berseem. 1902. [Exhau.>ited.] 



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



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



26. Spanish Almonds. 1902. [Exhausted.] 



27. Letters on Agriculture in the West Indies, Spain, etc. 1802. Price, 15 cents. 



28. The ]Mango in Porto Rico. 1903. [Exhausted.] 



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 theAVhite 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. 190.3. Price, 30 cents. 



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



myces Nitens. 1903. Price, 15 cents. 



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



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 Xew Plant Introductions from Japan. 1903. [Exhausted.] 



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



44. The Bitter-Rot of Apples. 1903. [Exhausted.] 



45. Physiological Rule of Mineral Nutrients in Plants. 1903. Price, 5 cents. 



46. Propagation of Tropical Fruit Trees, etc. 1903. [Exhausted.] 



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. 



[Continued on page 3 of cover.] 

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