98 C. S. PROSSER DEVONIAN AND SILURIAN ROCKS. 



and the well is located in the western part of the village, on the bank 

 of the Chittenango creek. The Chittenango station of the New York 

 Central and Hudson River railroad is 417 feet ahove tide, and, baro- 

 metrically, the mouth of the well is about 27 feet higher, making the 

 altitude approximately 444 feet above tide. Natural gas in small quan- 

 tities was obtained at several horizons. A little gas was struck at a 

 depth of 950 feet in the Medina. The largest amount occurred in the 

 Trenton limestone at a depth of 2,651 feet, hut gas was reached at 2,690, 

 2,875, 2,884 and 2,904 feet. At fi rs1 , aft< r 1 >ei ng closed for thirty minutes, 

 there was a sufficient volume of gas to produce a pressure of 25 pounds 

 to the square inch, hut by the middle of August, 1890, it had decreased 

 to 12 pounds. 



SECTION OF THE OHITTENANGO WELL* 



Approximate altitude, IfJ^jeel above tide. 



Depth. Thickness. Kind of rock. Formation. 



Feet. Feet. 



182 24 Bluish and grayish chips mixed with 



reddish dirt Drift (?). 



20G 179 Bluish marlite, which effervesces quite 



strongly in cold HC1 " 



385 5 Mostly chocolate-red marlite with some 



greenish and a few gypsum chips. . . . Onondaga Salt group. 



.'590 10 Bluish marlite with some red and 



green shale " " 



400 34 Clear reddish-chocolate shale with just 



a few green chips " " 



434 11 Mottled chocolate and green shales. .. . 



445 16 Green shale with a few reddish chips. . " " 



461 54 Dark gray and bluish-gray limestone, 

 which effervesces rather slowly at 

 first in cold HC1, hut hecomes strong 

 on standing. The samples leave a 

 considerable residue. Occasionally 

 some red and green chips ; at 500 feet 

 grains of salt 



515 52 Bluish-gray and bluish-black limestone 

 with some pinkish chips ; strong effer- 

 vescence in cold HC1 Niagara (?). 



567 •"-'! Green argillaceous shale, generally non- 

 calcareous ( Jlinton. 



600 44 Bluish-gray shale, which is slightly cal- 

 careous and arenaceous " 



*The record of this well is based upon a set of specimens purchased by the United States Geo- 

 logical Survey and now deposited in the United States National Museum. 



