S46 On Metallic Minerals. 



ORES OF MERCURY. 



No ores of mercury have been observed in the Canadian 

 territories ; but on the shores of Lakes Erie and Michigan, 

 in the United States, it is said to occur as a sulphuret, 

 mixed up with sandy alluvium. — (Note 12 ) 



Mercury is found sparingly in clay slate and secondary 

 limestone, — most abundantly in the sandstone and shale, 

 of the coal formation ; and, as in the present instance, 

 sometimes in alluvial deposits. It is among the most recent 

 of ores 5 ii'on, and perhaps manganese being the only two 

 which had been deposited subsequently. 



