LETTHR OF TRANSMITTAL. 



Department of the Interior, 



U. S.' Geological Si^rvey, 



Division of I^aleobotany, 

 Washinr/ton, T). C, December 11, 1890. 

 Sir: I have the honor to transmit lierewith the raanu.script.aiid (h-a\v- 

 ings of a monograph of the flora of the Dakota Group, by Prof Leo Lesque- 

 reux, edited by Pi'of F. H. Kuowhon, and to request its pubHcatiou. 

 Very respectfully, youi' obedient servant, 



Lester F. Ward, 



Geologist in charge. 

 Hon. J. W. Powell, 



Director. 



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