8 NEW YORK STATE MUSEUM 



58 feet 10 inches. Shale with thin bands of limestone. Traces of 



ore at 133 feet 

 16 inches Oolitic iron ore 

 5 feet 4 inches Sandstone and shale 



145 feet Total depth 



Analysis of the oolitic iron ore from the drill hole at Brewerton.^ 



Fe.Og 48.71 



SiO. 9.69 



TiOo 244 



AUO. 3.21 



MnO tr. 



CaO 13.8 



MgO .' 4-23 



SO3 141 



P.O. 2.38 



CO2 15-45 



H,0 2.33 



100.185 



Iron 34. 1 



Phosphorus i . 038 



A deep well-boring at Chittenango in 1890 indicated a thickness 

 of 323 feet of Clinton shales between 567 and 890 feet below the 

 surface, according to the interpretation of Prosser.^ 



The State well drilled at the south end of Onondaga lake in the 

 city of Syracuse in 1884 gave, according to the interpretation of 

 Prosser and Englehardt,^ a thickness of 98 feet of Clinton and 332 

 feet of Niagara, and the Gale well on the east side of the lake, 

 according to the same authorities, gave 149 feet of Clinton and 320 

 feet of Niagara.* 



Ubid, p. 38. 



2 C. S. Prosser. Bulletin of the Geological Society of America, v. 4, p. 98. 

 1893. 



" Ibid, p. 102. 



"*' For further particulars concerning the distribution of the Clinton in 

 central New York, see Bulletin 123 of the New York State Museum by 

 Newland and Hartnagel; and Thickness of Devonian and Silurian Rocks 

 in Central New York by C. S. Prosser, in Bui. Geol. Soc. of America, 

 V. 4, 1893, p. 91. 



