Vlll 



EEPORT OF THE 



No. 3 



The mill at the Dome mine is being enlarged and its capacity increased from 

 40 to 80 stamps. The completed mill is expected to be in operation during the 

 spring of 1914. There were 5 other producers at Porcupine, the principal of 

 which were Porcupine Crown and Mclntyre-Porcupine. In their combined opera- 

 tions they treated 53,705 tons of ore, which turned out 39,093 ounces of gold, 

 or an average yield per ton of .541 oz. 



From the other gold districts, the production was as follows: Kirkland Lake 

 and Swastika, 4,183 ounces, Long Lake, 5,879 ounces, Larder Lake, 700 ounces, 

 Eastern Ontario, 1,065 ounces, and Northwestern Ontario, 1,262 ounces. 



Much attention is being given to Kirkland Lake, where is situated the Tough- 

 Oakes mine. From this property 101.049 tons of selected ore were shipped, 

 which contained a gross value of $46,685 or $462 per ton. In addition 1,975 

 tons of lower grade material were put through a small stamp mill and $26,232.31 

 in goW recovered, or $13.28 per ton. 



Silver. — The production at Cobalt was a little less than in 1912, being 

 29,681,975 fine ounces as against 30,243,859 — a decrease of 561,884 ounces, or 

 1.85 per cent. High-water mark in this camp was apparently reached in 1911, 

 when the yield was 31,507,791 ounces. The process of decline is proving more 

 gradual than did that of increase, the falling-off in two years being only 5.7 

 per cent. The price of silver last year was lower than in 1912, the average in 

 New York for the twelve months being 59.791 cents per fine ounce as compared 

 with 60.835 cents. The result was to reduce the return to the mining companies 

 by $853,934, the value of the output being $16,555,001. 



To obtain the total yield of silver, there should be added to the Cobalt output 

 42,956 ounces recovered from the auriferous ores of Porcupine and the other gold 

 camps. 



It is now ten"" years since the silver deposits of "Cobalt began to be worked, 

 and up to the end of 1913, their total yield had a value of over 98 millions of 

 dollars, the record in detail being as follows: — 



The life of the camp is being prolonged by the discovery of new veins, by 

 the drainage of lakes so as to permit a more complete recovery of the deposits 

 underlying them, and by an increasingly extensive concentration of low grade ore. 

 Important veins were found last year when Kerr Lake was drained, and a promis- 

 ing find was made in February, 1914, on the old Kerry lease in the bed of 

 Peterson Lake; the drainage of Cobalt Lake is about to be begun; and a new 

 80-stamp concentration plant has been built to take the place of the Northern 



