GAS FROM THE TRENTON AND ONONDAGA. 239 



The Onondaga as a Gas-producer. — The occurrence of gas in the Onon- 

 daga, even in the small quantities noted, is unique. At Blyth, Huron 

 county, and in the midst of a considerable number of wells bored in the 

 salt region, a well was drilled which afforded, according to the driller, 

 the following record : 



Surface deposits 104 feet. 



Limestone 300 



(?) 346 " 



" Black shale " 100 " 



"Hard rock" 170 " 



Shale 105 " 



Rock-salt 00 " 



Total 1,215 " 



In the black shales considerable quantities of gas were obtained, not, 

 however, sufficient to he of commercial value. 



The Trenton ax a Gas-producer. — The Trenton formation has not as yet 

 afforded any considerable quantities of gas, though pierced at many points, 

 the most westerly being Stratford, where it was found at 2,360 feet and 

 penetrated for 24 feet, where a heavy flow of salt water caused the abandon- 

 ment of the work. Coining eastward, the point where it was next struck 

 was on lot 16, concession 15, Brantford township, Brant county, where 

 it was reached at a depth of 1,950 feet and a small quantity only of gas 

 obtained at its summit. At Dundas, near Hamilton, in Wentworth 

 county, it was struck at 1,43!) feet and found to he barren. Again, at 

 Thorold, Welland county, about 40 miles east of Hamilton, the Trenton 

 was struck at 1,905 feet and penetrated for 525 feet, where a very small 

 How of gas was noted. About S miles north of this, at Saint Catharines, 

 it was again reached, being struck at 1,506 feet and found to be barren, 

 although the entire formation was traversed. Again east of Thorold and 

 on lot 6, concession 15, of Bertie township, it was struck at 2,525 feet in 

 well number 14 of the Provincial company, wherein it was traversed for 

 195 feet without affording gas. The foregoing three wells are the only 

 ones in which the Trenton was reached south of Lake Ontario. On the 

 northern side, however, it has been met with in all wells drilled close to 

 the lake shore. In Toronto several wells were sunk, operations com- 

 mencing upon the Hudson River formation and the drilling continued 

 deep into or through the Trenton without finding gas; but at Mimico, 

 about 8 miles west, three wells have afforded small quantities, the great- 

 est flow being about 50,000 cubic feet per day. In and around Colling- 

 wood several wells, beginning in the upper beds of the formation and 

 continued to its base, afforded small Hows, the greatest being about 6,000 

 cubic feet per day. 



