128 PAPERS, ETC. 
Society, by Leonard Horner, Esq. late president of 
that society.— This discovery indicates that granite 
may be found in other parts of our western district. 
The Quantocks, and the hills farther west, are 
the transition, or grauwacke, formation, and are of 
the lowest sedimentary deposits. 
Few or no organic remains have been found in 
the grauwacke of Somerset, but some are known 
in the same class of rocks in Devon and Cornwall. 
In our hills, however, we have numerous beds of 
limestone, rich in madrepores, corals and encrinites. 
This limestone is much quarried for manure in 
several places. Weather-worn, or polished speci- 
mens, are interesting for geological cabinets. "They 
are richly colored,— yellow, red, brown, pearl-grey, 
and almost black. Copper has been obtained in 
considerable quantities in the Quantocks, but not 
sufficient to pay for working. Mining operations 
have been carried on at Broomfield and Dodding- 
ton. At Broomfield, the ore has been obtained 
as arich yellow sulphuret, associated with quartz 
and grauwacke; and at Doddington, as green and 
purple malachite in coraline lime-stone. Rich 
and beautiful specimens of these ores are to be seen 
in the cases in the society’s rooms at Taunton, Iron 
ore is found in those hills, but more abundantly 
in the western hills. 
It is probable that in former times, perhaps as 
long ago as when the Romans exercised military 
sway in this country, and improved the knowledge 
