LETTER OF TRANSMITTAL 
Department of the Interior, 
U. S. Geological Survey, 
Washington, B. (7., June i, 1894. 
Sir: I have the honor to transmit herewith for a bulletin of the 
Geological Survey a paper entitled u The Devonian System of Eastern 
Pennsylvania and New York," by Mr. Charles S. Prosser. 
Chas. D. Walcott, 
Geologist in Charge. 
Hon. J. W. Powell, 
Director U. S. Geological Survey. 
IX 
