Prof. J. S. Newberry, Chief Geologist : 



Dear Sir — I herewith transmit to you my report of labors in the Second Geologi- 

 cal District. The counties within the Coal Measures reported upon are Washington, 

 Noble, Monroe, and the southern portions of Guernsey and Belmont. My assistant 

 in 1872 was Mr. W. B. Gilbert, and in 1873 Mr. William Holden. Both of these gen- 

 tlemen have done most excellent work. 



Very truly yours, 



E. B. Andrews. 

 Columbus, October 15, 1874. 



