C 54 8 ] 
The River is called by the name of Frooyd, run- 
ning between two deep hills, or woods, but not 
very high : it proceeds from water from the adjacent 
mountains, and feems penn'd up and let out precipi- 
tately, to cleanfe the iron ore lying near the furface 
on the Tides of thefe mountains, which greatly difco- 
lours the water, which at thofe times, and after 
heavy rams, is lo rapid and violent, as to carry down 
prodigious quantities of large dones into another river 
called Avon Looyd. On Friday lad I walked up the 
Frooyd on the bottom of the river, it being quite 
dry, up to the chafm, that now receives the water : 
it is about twenty feet wide ; and when its banks are 
full, about eight or ten feet deep ; but now filled 
up to fifteen feet with dones carried in by the wa- 
ter. There’s a lime-done rock near the furface, about 
two feet thick, lying in large beds two or three 
feet fquare, more or lefs, in fome places, joined clofe 
in others ; the joints not fo clofe between thefe beds 
filled up with fmall gravel, which was by the rapi- 
dity of the dream fuppofed to be wafhed out of thole 
joints over a cavity under the faid lime-done rock, 
and the great weight of water at that time falling 
from a fmall precipice jud above, forced in one of 
thefe beds of done. The fides of the pit under the 
lime done rock appear to be compofed of different 
materials, as gravel and earth, but firm and perpen- 
dicular. On one fide this river near this hole, are 
three pits funk at the fame time, the one within ten 
yards,' of which there was no appearance before ; the 
other two at about thirty yards up the fide of the 
hill (which have been obferved,for many years, though 
no body knew the caule of them) are now funk fome 
yards 
