LETTER OE TRANSMriTAL. 



United States Department ov Agriculture, 



Division of Agrostology, 

 Washington, J). (7., March 18, 1897. 



Sir: I bave the honor to transmit herewith aii<l to recomnieiul for 

 publication as a bulletin of tliis Division two papers, one describing 

 sevenil new or little-known grasses, the second ui)on the Leaf Struc- 

 ture of Jonvca and of Erafiro.sfis ohtusifJora by the histologist of the 

 Division. These are both technical pai)ers, and, like Bulletin No. 4, may 

 be entitled '' Studies on American Grasses." 



Respectfully, 



F. Lamson-Scribner, 



Agrostoloffist. 

 Hon. James Wilson, 



Secretary of Agriculture. 

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