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LETTER OF TRANSMITTAL. 



I have the pleasure of transmitting herewith a synopsis of the genus 

 Vitis of North America, as classified by T. V. Munson, of Benison, Tex. 

 This is intended as preliminary to a complete monograph of the wild 

 grapes of this country, which is now in course of preparation by this 

 Division. 



The extreme difficulty of the preparation of the original illustrations 

 and certain field observations yet to be made, render the issuing of 

 this synopsis necessary. 



Very respectfully, 



Hon. Edwin Willits, 



Assistant Secretary. 



H. E. Van Deman, 

 Chief of Division of Pomology. 



