BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



The scientific and technical publications of the Bureau of plant Industry, which was organized July 1, 

 1901, arc Issued in a sin bulletins, a lisl Of which follows. 



At 'cut ion is directed to the fact thai the publications in this aeries arc not (or general distribution. Tl e 

 irlntendenf of Documents, Govenhnenl Printing Office, Washington, D. C, Is authorized by law bo 

 Ball them at cost, and to him all applications for these bulletins should be made, accompanied bj a po bal 

 money order for the required amount or by cash. Numbers omitted from this list can not be furnished. 



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

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



improvement in Arizona. 1901. Price, 10 cents. 



8. A Collection of Fungi Prepared for Distribution. 1902. Price, L0 cents, 

 I'he North American species of Spartina. 1902. Trice, R> cents. 



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



11. Johnson Grass. 1902. Price, 10 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. 15 cents. 

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



20. Manufacture of Semolina and Macaroni. 1902. Price, 15 cents. 



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



23. Berseem: The Great Forage and Soiling Crop of Nile Valley. 1902. Price, 15 cents. 



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



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



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

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



31. Cultivated Forage Crops of the Northwestern states. 1902. T'rii e, 10 cents. 



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



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



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



36. rhe •' Bluing" of Western Yellow Pine, etc. 1903. Price, 30 cents. 



37. Formation of Spores in Sporangia of Rhizopus Nigricans, etc. 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, lOcenls. 



41. The Commercial Grading of Com." 1903. Price, 10 cents. 



42. Three New Plant Introductions from Japan. 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. 

 54. Persian Gulf Dates. 1903. Price, 10 cents. 



59. Pasture, Meadow, and Forage Crops in Nebraska. 1904. Price, 10 cents. 



60. A Soft Rot of the Calla Lily. 1904. Price, 10 cents. 



61. The Avocado in Florida. 1904. Price, 5 cents. 



62. Notes on Egyptian Agriculture. 1904. Price, 10 cents. 



67. Range Investigations in Arizona. 1904. Price, 15 cents. 



68. North American Species of Agrostis. 1905. Price, 10 cents. 



69. American Varieties of Lettuce. 1904. Price, 15 cents. 



70. The Commercial Status of Durum Wheat. 1904. Price, 10 cents. 



71. Soil Inoculation for Legumes. 1905. Price, 15 cents. 



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



73. The Development of Single-Germ Beet Seed. 1905. Price, 10 cents. 



74. Prickly Pear and Other Cacti as Food for Stock. 1905. Price, 5 cents. 



75. Range Management in the State of Washington. 1905. Price, 5 cents. 



76. Copper as an Algicide and Disinfectant in Water Supplies. 1905. Price, 5 cents. 



77. The Avocado, a Salad Fruit from the Tropics. 1905. Price. 5 cents. 



79. Variability of Wheat Varieties in Resistance to Toxic Salts. 1905. Price, 5 cents. 



80. Agricultural Explorations in Algeria. 1905. Price, 10 cents. 



81. Evolution of Cellular Structures. 1905. Price, 5 cents. 



82. Grass Lands of the South Alaska Coast. 1905. Price, 10 cents. 



83. The Vitality of Buried Seeds. 1905. Price, 5 cents. 



84. The Seeds of the Bluegrasses. 1905. Price, 5 cents. 



85. Principles of Mushroom Growing and Mushroom Spawn Making. 1905. Price, 10 cents. 



86. Agriculture without Irrigation in the Sahara Desert. 1905. Price, 5 cents. 



88. Weevil-Resisting Adaptations of the Cotton Plant. 1906. Price, 10 cents. 



89. Wild Medicinal Plants of the United States. 1906. Price, 5 cents. 



90. Miscellaneous Papers. 1906. Price, 5 cents. 



91. Varieties of Tobacco Seed Distributed, etc. 1906. Price, 5 cents. 



94. Farm Practice with Forage Crops in Western Oregon, etc. 1906. Price, 10 cents. 



95. A New Type of Red Clover. 1906. Price, 10 cents. 



96. Tobacco Breeding. 1907. Price, 15 cents. 



97. Seeds and Plants Imported. Inventory No. 11. 1907. Price, 15 cents. 



98. Soy Bean Varieties. 1907. Price, 15 cents. 



[Continued on page 3 of cover.] 

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