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CHROMIUM. 



Chromium in the form of chromic iron ore is ano- 

 ther substance which is found in considerable quan- 

 tities in several parts of the Eastern Townships, and 

 is valuable as the only source of chromate of potash, 

 which has now an extensive use in the arts for the 

 manufacture of several pigments, and in various 

 processes of dyeing and calico-printing. 



TITANIUM. 



Titanium, which has within a few years attracted 

 the attention of iron manufacturers for its supposed 

 beneficial influence upon iron, and has moreover 

 been proposed for several other uses in the arts, is 

 found in Canada in great and apparently .inexhaust- 

 ible quantities, as ilmenite or titanic iron ore, both 

 in the Laurent,ian region and in the Eastern Town- 

 ships. 



Among other materials may be mentioned ores of 

 nickel and cobalt, molybdenum, and carbonate of 

 magnesia, all of which find their applications in a 

 country where chemical manufactures are pursued. 



OCHRES. 



Ochres for paints, of great purity, and of various 

 shades of colour are abundant in several parts of 

 Canada, and are extensively wrought for the New- 

 York market. In like manner sulphate of barytes, 

 which is largely used in the preparation of pigments, 

 is found in considerable quantities in several parts 

 of the province. 



QUARTZ. 



Quartz of the purity required for glass-making is 

 abundant in the form of white sandstone in several 

 parts of the province, and is employed in a large 



