86 



Repoet of the State Geologist. 



The following is Prosser's statement in full : 



" Section of Well drilled in the Seneca River Yalley 



IN THE Eastern Part of the Village. Altitude, Approxi- 



mately, 385' A. T. 







100' 



.9 



300' 



700' 



' 400' 



QQ 



950' 



250' 





400' 



1350' 







150' 





1500' 





200' 



Drab colored, impure limestones. 



Blue marls with an* occasional red and green chip. 



Greenish-gray marls and drab-colored limestones. 



Mostly bright red shale, but some mottled red and 

 green shale. 



Dark blue limestone in the upper part, with green- 

 ish shales at the base. Niagara and Clinton 

 groups. 



Red shales and sandstones of the Medina group. 



Bottom of well." 



Section of Well drilled at Ithaca, Tompkins Count r, IST. Y. 

 Location in the Yalley, one fourth of a mile south of 

 Ithaca. Altitude 396' A. T. 



Depth. 



Thickness, 







340' 



Portage shales and sandstones. 



340' 









100' 



Genesee black shale. 



440' 









30' 



Tully limestone. 



470' 









1142' 



Hamilton shales and sandstones. 



1612' 









82' 



Marcellus black shale. 



1694' 









78' 



Corniferous limestone. 



1772' 









13' 



Oriskany sandstone. 



1785' 



. 







115' 



• 



Lower Helderberg limestones. Approximate top of 

 the Salina group. 



1900' 









1285' 



Salina group, a part. 



3185' 





Bottom of well according to the contractor, Mr. 



Rust. 



