LETTER OF TRANSMITTAL. 



New Brunswick, N. J., September 1, 1889. 



Sir: I have the honor to transmit herewith to you, for publication and 

 distribution under the arrangements for cooperation which prevail, Prof. 

 Robert P. Whitfield's text and drawings of the Mollusca and Crustacea of 

 the Miocene formations of New Jersey. The book has been prepared with 

 great industry and care, and is deemed worthy of a place among those valu- 

 able monographs of the United States Government which are written and 

 published under your supervision and direction. It is important to all who 

 are interested, either theoretically or practically, in the geology of the State. 

 Neighboring States are of course sharers in the fruits of this prolonged 

 investigation, and the relation of the paleontology of New Jersey to the 

 structural conditions prevailing in other parts of the United States makes 

 this in every sense a national work. 



I am, with high respect, your obedient servant, 



Geo. H. Cook, 

 State Geologist of New Jersey. 

 Hon. J. W. Powell, 



Director U. S. Geological Survey. 



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