4 



The drawings are all from carefully selected specimens, 

 the habit sketches being made by Mr. A. H. Baldwin. 

 The enlarged details were drawn by myself, with the ex- 

 ception of a few which were made by Miss M. D. Baker. 

 The engraving is the work of Mr. L. S. Williams and 

 Mr. George P. Bartle. The work has all been done in 

 the office of the Division, with the exception of that 

 performed by Mr. Bartle. 

 Respectfully, 



F. Lamson-Scribner, 



Agrostologist. 

 Hon. Chas. W. Dabney, Jr., 



Assistant Secretary of Agriculture. 



