REPORT. 



James Hall, State Geologist: 



Sir. — In accordance with the request which you addressed to 

 me last July, I have prepared an account of the Geology of 

 Seneca county, from both a scientific and economic point of view. 

 This I now have the honor to present. 



In treating of geological matters proper, I have given much 

 attention to topography and drift phenomena. In studying the 

 palaeozoic rocks, the determination of boundaries of formations 

 has been the principal object. Economic resources are spoken 

 of under the heads of Quarries, Clay industries, Gas wells, 

 Water-power, etc. 



A geological map is added, and original photographs, sketches 

 and sections are employed in illustration. 



1 desire to tender thanks to the Hon. A. M. Patterson, Hon. 

 D. H. Evans, Hon. Diedrich Willers, Messrs. King and Robinson, 

 Harrison, Chamberlain and others, who have rendered essential 

 service to my work. 



I remain, very respectfully, 



Your obedient servant, 



D. F. LmCOLK 



Geneva, N. Y., Novemler 12, 1 895. 



