PREFACE. v 



A. Gulley, of Mississippi; Professors Latta and Troop, of 

 Purdue University, Indiana. 



The following list should be added as freely quoted: Prof. 

 F. L. Scribner, Clifford Richardson and Dr. G. Vasey, of 

 Washington; Dr. R. C. Kedzie, of Michigan; Dr. A. Gray, 

 Prof. N. S. Schaler, and Prof. F. L. Storer, of Massachusetts; 

 Secretary W. I. Chamberlain, now president of Iowa Agricult- 

 ural College; Mr. L. N. Bonham, of Ohio; E. S. Carman, 

 of New York; Prof. Wm. Brown, of Ontario; Prof. G. E. 

 Morrow, of Illinois, and Mr. De Laune, of England. 



For reading portions of proof I am indebted to my col- 

 legues, Prof. A. J. Cook, Dr. Lewis McLouth, Prof. E. J. 

 MacEwan, Prof. L. H. Bailey, jr., also to Prof. V. M. Spauld- 

 ing, of Ann Arbor, and Prof. F. L. Scribner, of Washington. 

 Thorp & Godfrey, of Lansing, Mich., are credited with the 

 mechanical part of the work. 



A second volume is in preparation. This is to contain the 

 description of all known grasses of North America, 700 or 

 more species, with illustrations of one species in each genus, 

 and in some cases more than one. Full notes in regard to 

 their value for cultivation will be given. A chapter on Geo- 

 graphical Distribution and other information likely to interest 

 the student of grasses will be presented. 



W. J. BEAL. 



BOTANICAL LABORATOEY, 



AGRICULTURAL COLLEGE, MICH. 



JANUARY, 1887. 



