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 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 of each 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 Introduc- 
tion, etc., Inventory No. 9. 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. 
0. Records of Seed Distribution and Cecnetatly e Experiments with Grasses and 
Forage Plants. 1902. 
11. Johnson Grass: Report on Investigations Made during the Season of 1901. 
1902. 
12. Stock Ranges of Northwestern California. 1902. 
