BULLETINS OF THE BUREAU OF PLANT INDUSTRY. 



The Bureau of Plant 1 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 Experimental Farm, Tea Investigations and 

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

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

 Agrostology, the last number of which was 25, and also 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 Improvements in Arizona. 1901. 



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



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



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



7. The Algerian Durum Wheats: A Classification List, with descriptions 1902. 



8. A Collection of Economic and Other Fungi Prepared for Distribution. 1902. 



9. North American Species of Spartina. 1902. 



10. Records of Seed Distribution and Cooperative Experiments. 1902. 



11. Johnson Grass: Reports of Investigations made during the SeriTson 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 Methods of Preventing It. 1902. 



