BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



The Bureau of IMant Industry, which was organized July 1. 1901, includes Vege- 

 table Pathological and Physiological Investigations, Botanical Investigations and 

 Experiments, < irass and Forage Plant Investigations, Poinobgicai Investigations, and 

 Gardensand (Sfrounds, all of which were formerly separate Divisions, and also Seed 

 and Plant Introduction and Distribution, the Arlington Experimental Farm, and 

 Tea Investigations and Experiments. 



Beginning -with the date of organization of the Bureau, the independent series of 

 bulletins of the Section of Seed and. Plant Introduction, the last number of which 

 was I'-', and of each of the other Divisions wen 1 discontinued, and all are now pub- 

 lished as one series of the bureau. 



The bulletins issued in the present series are: 



No. 1. The Relation of Lime and Magnesia to Plant Growth. 1901, 

 2. Spermatogenesis - and Fecundation of Zamia. 1901. 

 :;. Macaroni Wheats. $01, 



4. Range Improvement. in Arizona, b'oi. 



5. Seeds and Plants Imported through the Section of Seed and Plant Introduc- 



tion. Inventory No. 0, NoS. 4351-5500. 1902. 

 ti. A List of American Varieties of Peppers. 1902. 



7. The Algerian Durum Wheats: A Classified List, with Descriptions; 19Q2. 

 s. A Collection of EconomiCand other. Fungi Prepared for Distribution. 1902. 

 '.i. North American Species of Spartina. 1902. 

 10. Records of Seed Distribution and Cooperative Experiments with Grasses 



and Forage Plants. 1902. 

 1 1. Johnson Grass: Reports of Investigations Made during the Season of 1901- 

 1902. 



12. Stock Ranges of Northwestern California. 1902. 



13. Experiments in Range Improvement in Central Texas. 1902. 



14. The Decay of Timber and the Methods of Preventing it. 1902. 



15. Forage Conditions on the Northern Border of the Great Basin. 1902. 



16. A Preliminary Study of the Germination of the Spores of Agaricus Cam- 



pestris and other Basidiomyeetous Fungi. 1902. 



17. Some Diseases of the Cowpea. 1902. 



18. Observations on the Mosaic Disease of Tobacco. 1902. 



19. Kentucky Bluegrass Seed : Harvesting, Curing, and Cleaning. 1902. 



20. Manufacture of Semolina and Macaroni. 1902. 



21. List of American Varieties of Vegetables. 1902. (In press.) 



22. Injurious Effects of Premature Pollination. 1902. 



23. Berseem; the Great Forage and Soiling Crop of the Nile Valley. 1902. 



24. The Manufacture and Preservation of Unfermented Grape Must. 1902. 



( In press ) . 



25. Miscellaneous Papers. 1902. 



26. Spanish Almonds and their Introduction into America. 1902. 



