250 THE CARBONIFEROUS SYSTEM. 



lotte counties, which afford the greater part of the lirne used in the 

 province. 



Manganese. — Deposits of the peroxide of this metal, so largely- 

 employed in bleaching and glass manufacture, occur in the province 

 at several points, especially at Bathurst, near Shepody Mountain, at 

 Quaco, and Upham. At the latter locality, near the source of Ham- 

 mond River, the deposit is large and of excellent quality, and con- 

 siderable quantities are annually removed. 219 tons were exported 

 in 1864 from the localities above mentioned. The ores occur, with 

 the exception of that at Bathurst, in limestone near the base of the 

 Lower Carboniferous system. Wad or black manganese ore is also 

 abundant, but, while richer ores abound, is not of value. 



