EIGHTEENTH ORDINARY MEETING. 269 



Heat is applied beneath the shovel to drive off the quicksilver that 

 could not be removed by pressure. After a sufficient application of 

 heat, the button of amalgam assumes a gold colour and is allowed to 

 ■cool. This is the gold amalgam of commerce. 



The rest of the paper was descriptive of the machine methods of 

 recovei'ing the gold. 



In answer to questions from Messrs. Murray, Miles, Bain, 

 Livingston and others, Mr. Levey said that hand-work had 

 been going on for nine years, and machinery work five years ; 

 the first was not commonly satisfactory, and the other pro- 

 duced about $6 per day ; that the tract was 200 miles north 

 of Calgary, and extended 50 miles ; that the yield per pan 

 was about tv/o cents ; that the sand contained magnetic iron 

 and a little platinum ; that there were from 1,500 to 2,000 

 settlers ; that there were large boulders of gneiss and granite 

 which, he thought, came from the Lauren tian to the north- 

 east ; and he thought hydraulic mining would pay after a 

 very large expenditure. 



EIGHTEENTH ORDINARY MEETING. 



The Eighteenth Ordinary Meeting was held on Saturday, 

 14th March, 1885, the President in the Chair. 



The minutes of last meeting were read and confirmed. 

 The following list of donations and exchanges was read : 



1. " Some Historical Names of Places of the Canadian North-west." By 



Charles N. Bell, Esq. 

 " Our Northern Waters." By the same. Presented by the Author. 



2. Science, Vol. V., Nor 109, March 6th, 1885. 



3. Journal of the Franklin Institute, March, 1SS5. 



4. Essex Institute, Historical Collections, Vol. XXI., Nos. 4, 5, 6, April, 



May aud June, 1884. 



5. The Pennsylvania Magazine of History and Biography, No. 32. Vol. VIII., 



No. 4, December, 1884. 

 ^Q. Triibner's Amei'ican, European, and Oriental Literary Eecord, Nos. 205-206. 

 7. Annual Peijort and Proceedings of the Belfast Naturalists' Field Club, 



1883-84, Series II., Vol, II., Part IV. 

 ,8. Journal of the Tiickett Microscopical Club, Series II., Vol. II., No, 11 



March, 1885. 

 10 



