THE GRASSES OF IOWA 



BY 



L. H. PAMMEL, Ph. D., 



Professor of Botany, Iowa State College of Agriculture 

 and the Mechanic Arts, 



J. B. WEEMS, Ph. D., 



Professor of Agricultural Chemistry, Iowa State College 

 of Agriculture and the Mechanic Arts. 



F. LAMSON-SCRIBNER, Agrostologist, 



U. S. Department of Agriculture, Washington, D. C. 



