LETTER OF TRANSMITTAL 



To His Excellency Phillips Lee Goldsbokough, 



Governor of Maryland and President of the Geological Survey Com- 

 mission, 



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

 of reports dealing with the systematic geology and paleontology of Mary- 

 land. The preceding volumes have dealt with the Eocene, Miocene, Plio- 

 cene and Pleistocene, and Lower Cretaceous deposits and the remains of 

 animal and plant life which they contain. The present volume treats of 

 the Lower Devonian deposits and their contained life, a knowledge of 

 which is very important from an educational and scientific standpoint. 

 I am. Very respectfully, 



WM. BULLOCK CLARK, 

 State Geologist. 

 Johns Hopkins University, 



Baltimore, January, 1913. 



