[Continued from page 2 of cover.] 

 No. 4;!. Japanese Bamboos. IDOo. Price, 10 cents. 



44. Tlie liittor Hot of Apples. 1903. Price, 1.5 cents. 



45. Pbysiolojiical Role of Mineral Nutrients in IMants. lOO.". Price, 5 cents. 

 40. I'ropai,'ation of Tropical Fruit Trees and Other Plants. 1903. Price, 10 



cents. 



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



48. The Apple in Cold Storage. 19(J3. Price, 15 cents. 



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



cents. 



50. Wild Kico: Its Uses and Propagation. 190."^. Price, 10 cents. 



51. Miscellaneous Papers: I. The Wilt Disease of Tobacco and Its Control. 

 II. The Work of the Community Demonstration Farm at Terrell, Tex. 



til. Fruit Trees Frozen in 1904. IV. The Cultivation of the Aus- 

 tralian Wattle. V. Legal and Customary Weights per Bushel of 

 SetMls. VI. (Jolden Seal. 1905. I'rice. 5 cents. 



52. Wither-Tip and Other Diseases of Citrous Trees and Fruits Caused by 



Colletotrichum GUeosporioides. 1904. I'rice, 15 cents, 



53. The Date Palm. 1904. Price, 20 cents. 



54. Persian (Julf Dates. 190.3. Price. 10 cents. 



55. The Dry Pot of Potatoes. 1904. Price, 10 cents. 

 50. Nomenclature of the Api)Ie. 1905. I'rice, 30 cents. 



57. Methods IT.sed for Controlling Sand Dunes. 1904. Price, 10 cents. 



58. The Vitality and Germination of Seeds. 1904. Price. 10 cents. 



59. Pasture, ]\Ieado\v. and Forage Crops in Nebraska. 1904. I'rice, 10 cents. 

 ()0. A Soft Rot of the Calla Lily. 1904. I'rice, 10 cents. 



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



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



63. Investigations of Rusts. 19(>4. IMMce, 10 cents. 



64. A Method of Destroying or I'reveuting the Growth of Algfe and Certain 



Pathogenic Bacteria in Water Supplies. IJXM. Price, 5 cents. 



65. Reclanuition of Cape Cod Sand Dunes. 1904. Price. 10 cents. 



66. Seeds and Plants Imported. Inventory No. 10. 1905. Price, 20 cents. 



67. Range Investigations in Arizona. 1904. I'rice, 15 cents. 



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



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



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



71. Soil Inoculation for I.,egumes. 1905. Price, 15 cents. 



72. Miscellaneous Papers: I. Cultivation of Wheat in Permanent Alfalfa 



Fields. II. The Salt Water Limits of Wild Rice. III. Extermination 

 of Johnson Grass. IV. Inoculation of Soil with Nitrogen-Fixing Bac- 

 teria. 1905. Price, 5 cents. 



73. The Development of Single-Germ Beet Seed. 1905. I'rice. 10 cents. 



74. The Prickly Pear and Other C.uti as Food for Stock. 1905. Price, 5 



cents. 



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



76. Copper as an Alglcide and Disinfectant in Water Supplies. 1905. Price, 



5 cents. ^^ ' 



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



78. Improving the Quality of Wheat 1905. Price, 10 cents. ' 



79. The 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., 

 S3. The Vitality of Buried Seeds. 1905. Price, 5 cents. 



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



85. The Principles of Mushroom Growing. 1905. Price, 10 cents. 



86. Agriculture without Irrigi^tion in the Sahara Desert. 1905. Price, ." 



cents. 



87. Disease Resistance of Potatoes. 1905. Price, 5 cents. 



88. W^eevil-Resisting Adaptations of the Cotton Plant 1906. Price, 10 



cents. 



89. Wild Medicinal Plants of the United States. 1900. Price, 5 cents. 



90. Miscellaneous Papers : I. The Storage and Germination of Wild Rice 



Seed. II. The Crown-Gall and Hairy-Root Diseases of the Apple 

 Tree. III. Peppermint IV. The Poisonous Action of Johnson Grass. 

 1906. Price, 5 cents. 



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



