GEOLOGY OF THE QUANTOCKS. 103 
pact stone, very like some horn stones, or some of those 
close-grained siliceo-argillaceous compounds, which it is 
very diffieult to name.” On going to the quarry, Mr. 
Horner found it almost overgrown with brushwood, and he 
goes on to say that he there found it in situ; it is small 
grained, and consists of dull flesh-coloured feldspar, with 
green mica, and a small quantity of quartz. 
Through the kindness of Miss Warre, I examined this 
quarry yesterday, and found the junction of the slate with 
the granite. Itook sections and specimens, but I have 
not had sufficient time to give full attention to the matter 
so as to lay the result before you to-day. Near the junc- 
tion, the slates are much disturbed and broken, and there 
may be observed an indistinet blending, as it were, of the 
slate and granite. North and south the slate assumes a 
felspathic appearance, and fragments of it seem united by a 
granitic cement. Extending our examination towards 
Broomfield, and a little to the south, we get a laminated 
slate of a deep grey colour, and by the old and now aban- 
doned Broomfield copper mine, tru& killas may be ob- 
served. The slates at the mouth of the adit dip almost 
perpendicularly, with a tendency south, however. Here 
we may observe fine white quartz, with sulphuret of 
copper- Near Old mill* by Broomfield, we get a gritty, 
argillaceous flagstone of a purplish hue. The beds dip 
about 30 deg. south, and the quarry offers an admirable 
section, being nearly 30 feet in height. Returning by way 
of Kingston, we find in the lane leading to Tarr farm a 
purplish slate, occasionally verging to green in colour ; 
and we may observe here a most remarkable example of 
angular contortion of the strata, the dip being upwards of 
70 deg. south, and covered by horizontal beds of red, argil- 
* See Ordnance Map. 
