480 



NEW YORK STATE MUSEUM 



Trenton limestone, struck at 635 ft. . 500 ft 



Calcif erous sandstone, struck at 1135 



Granite, struck at 1560 



Two veins of salt water, one at 1135 and a stronger one at 

 1175 feet, were discovered in the descent. The Potsdam sand- 

 stone began, according to the determination of the drillers at 

 1290 feet. 



A full set of samples of the drillings was kept by Dr W. S. 

 Kingsley, one of the principal stockholders of the Brass and 

 copper co. as well as of the Factory building co. Dr Kingsley 

 kindly allowed me the full use of these samples and the careful 

 examination of them gives warrant for the following section. 



f Soil and clay. -.' 16 ft 



Dark, fine grained clay 34 



Dark, gravelly clay 16 



Drift, 125 feet -J Dark and coarse gravel 29 ■ 



Finer gravel 12 



Fragments of Utica shale 10 



L Coarse gravel 8 



[Upper beds at 126 



' Very dark shale / 350-450 



Utica shale, , Hard shale 550-630 



500 feet 



658 



660 



680 

 715 



Trenton lime- 

 stone, 435 feet 



Calcareous shale at . 



White flakes of lime, approaching 

 .Trenton limestone 



Upper beds at ... = .. 



Pepper and salt rock (gas found 



here) at 



Light blue limestone at 



Light gray limestone 735-765 



Dark blue limestone, hard, at. . . . 855 



^ Limestone, alternately gray and 



blue ' '. 875-925 



Limestone, alternately gray and 



black ...."....... 925-1000 



Limestone, black and hard 1020-1025 



Limestone, softer 1025-1080 



L Limestone, shaly 1 080-1085 



