138 HOW ON ORES OF MANGANESE AND THEIR USES. 



per cent, binoxidc. 



47-73 

 56-00 



84-62 



88-01 

 92-69 

 95-00 

 97.04 



Manganite, from Cheverie, Hants Co., air-dry, gave... 



Wad, from Halifax Co. (?), dried at 212°, gave 



Pyrolusite and ) n -r> ■, tt ^ r\ • j 



p-'., ■, > irom Douglas, Hants Co., air-dry, gave 



Pyrolusite, Teny Cape, Hants Co., No. 1, air-dry, gave 



" " " No. 2, " " 



" " " No. 3, dried at 212° 



Pyrolusite, from Cumberland Co., dried at 212°, gave. 



These results relate to the most important character of the ores ; 

 in the rich samples the amount of iron was generally vei-y small ; 

 other analytical details are omitted, as this paper is perhaps long 

 enough already. It is apparent, I think, that the ores of manga- 

 nese are likely to prove of considerable importance in the economic 

 mineralogy of the Province. 



