GRASSES OF IOWA. 5 



who made some of the drawings representing anatomy of 

 leaves, and Miss Charlotte M. King, for faithful drawings. 

 Thanks are due also to Mrs. M. S. Schoonover, Miss Nellie 

 Newman and Miss Loughran for clerical help. 



The names of collectors and of localities will be found in 

 their appropriate connection. We trust that this volume, a pre- 

 liminary one of the botanical series, will meet with the 

 approval of botanists as well as the people of the state. 



The chemical analyses of the grasses, presented in this 

 work, were made by the chemical section of the Experiment 

 Station, and the faithful service of Messrs. Mead and Gretten- 

 burg have added largely to the completeness of the work. 



L. H. Pammel, 

 J. B. Weems. 



Ames, Iowa, November 1, 1899. 



