XVI 



Bull. Ohio Univ. 



Ohio State University. Columbus. Bulletin. 

 Bull. Pacific Univ. 



Pacific University. Bulletin. Forest Grove, Oregon. 

 Bull. Penn. Dept. Agr. 



Pennsylvania Department of Agriculture. Bulletin. 

 Bull. S. Dak. Exp. Sta. 



South Dakota Agricultural College and Experiment Station. Brook- 

 ings. Bulletin. 



Bull. Soc. Bot. Belg. 



Soci6te royale de Botanique de Belgique. Bulletin. 



Bull. Soc. Bot. Fr. 



Soci6t6 Botanique de France. Paris. Bulletin. 



Bull. Soc. Myc. Fr. 



Societ6 Mycologique de France. Paris. Bulletin. 



Bull. Tex. Exp. Sta. 



Texas Agricultural Experiment Station. Bulletin. 



Bull. Torr. Bot. Club. 



Torrey Botanical Club. New York. Bulletin. 



Bull. Univ. Iowa. 



Laboratories of Natural History of the State University of Iowa. 

 Bulletin. 



Bull. U. S. Agr. Div. Bot. 



United States Department of Agriculture, Division of Botany. Bul- 

 letin. 



Bull. U. S. Agr. Office Exp. Sta. 



United States Department of Agriculture, Office of Experiment Sta- 

 tions. Bulletin. 



Bull. U. S. Agr. PI. Industry. 



United States Department of Agriculture, Bureau of Plant Industry. 

 Bulletin. 



Bull. U. S. Agr. V. P. P. 



United States Department of Agriculture, Division of Vegetable 

 Pathology and Physiology. Bulletin. 



Bull. U. S. Agr. Veg. Pathol. 



United States Department of Agriculture, Division of Vegetable 

 Pathology. Bulletin. 



Bull. Wash. Exp. Sta. 



Washington Agricultural Experiment Station. Pullman. Bulletin. 



Bull. Wash. Lab. 



Washburn Laboratory of Natural History. Topeka, Kans. Bulletin. 



Bull. W. Va. Exp. Sta. 



West Virginia Agricultural Experiment Station. Morgantown. Bul- 

 letin. 



