Manganese. 67 
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Messrs. 1821. 
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XY. Intelligence and Miscellaneous Articles. 
MANGANESE, 
To the Editor. 
Newcastle-upon-Tyne, July 3, 182). 
Sir, — 1, may not be uninteresting to such of your readers as 
possess estates or manorial rights in districts, the geological fea- 
tures of which are similar to those of cur coal formation, to be 
made acquainted with the discovery of the oxide of manganese 
in this neighbourhood. Flying reports had long been in circula- 
tion of the existence of this mineral at Ousten near Urpeth si- 
tuated between three and four miles north-west of Chester-le- 
street in the county of Durham; but it was generally surmised 
that iron slag, of which large quantities occur by the sides of all 
the Roman roads in the north of England, had been mistaken for 
it, for no traces of this metal had previously been detected in any 
of our numerous mines or quarries. However, about two months 
since, these reports were verified by some large masses of the 
black oxide being uncovered by the plough, but whether connect- 
ed with a vein or a bed is not“yet determined. ‘The specimen 
12 now 
