BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



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

 table Pathological and Physiological Investigations, Botanical Investigations and 

 Experiments, Grass and Forage Plant Investigations, Pomological Investigations, 

 and Gardens and Grounds, all of which were formerly separate divisions, and 

 also Seed and Plant Introduction, The Arlington Experiment Farm, Tea Investiga- 

 tions and Experiments, and the Congressional Seed Distribution. Beginning with 

 the date of the organization of the Bureau, the independent series of bulletins of 

 the Division of Agrostology, the last number of which was 25, and of the other 

 divisions, were discontinued, and all are now published as one series of the Bureau. 



The bulletins published in this series are — 



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



2. Spermatogenesis and Fecundation of Zamia. 1901. 



3. Macaroni Wheats. 1901. 



4. Range Improvement in Arizona. 1901. 



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



duction, etc., Inventory No. 9. 4351-5500. 1902. 



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



7. The Algerian Durum Wheats: A Classified List with Descriptions. 1902. 



8. A collection of Economic and other Fungi Prepared for Distribution. 



1902. 



9. The North American Species of Spartina. 1902. 



10. Records of Seed Distribution and Cooperative Experiments with Grasses 



and Forage Plants. 1902. 



11. Johnson Grass: Reports of Investigations made during the Season of 



1901. 1902. 



