LETTER OF TRANSMITTAL 



To His Excellency Edwin Warfield, 



Governor of Maryland and President of the Geological Survey 

 Commission. 



Sir: — I have the honor to present herewith the third volume of a series 

 of reports dealing with the systematic geology and paleontology of 

 Maryland. The preceding volumes have dealt with the Eocene and 

 Miocene deposits and the remains of animal and plant life which they 

 contain. The present volume deals with the two most recent divisions of 

 geologic time, the Pliocene and Pleistocene which have exercised a 

 potent influence upon the surface configuration and soils of Maryland 

 and a thorough knowledge of which cannot be overestimated from an 

 educational and scientific viewpoint. I am, 



Very respectfully, 



William Bullock Clark, 



State Geologist. 

 Johns Hopkins University, 



Baltimore, October, 1906. 



