CLAYS OF BOVET TEACET, DEVONSHIEE. 
1033 
pit, at its eastern end, about 80 feet below the surface. Let AB be a portion of a 
tunnel, or “ working,” on that level, on the eastern side of the pit, running, about N.E. 
Eig. 2. 
and S.W., near and parallel to the plane of the “ fault.” C the old engine-shaft, 
56 fathoms east of the pit. D and F various places at which Mr. Divett drove hori- 
zontally from the eastern side of the tunnel. In doing so he “ always found the coal 
fail and replaced by hard and wet ‘ deady ’ clay at F he “ drove further, and cut into 
a bank of sand;” in fact he seems here to have cut through, but elsewhere into, a dyke 
composed of heterogeneous materials ; beyond which he encountered a bed of “ sand full 
of water;” doubtless the 13th bed in the following section (No. 5), which, it will be 
seen, exists at the required depth (“ 80 feet below the surface”*). 
Mr. Divett proceeds to say, “About 70 fathoms east of the shaft, I bored, in 1855, 
99 feet, when I obtained the following section.” 
Section 5. 70 fathoms east of the Fault on Bovey Heathfield (furnished by J. Divett, Esq. ). 
Beds. 
1 
Thickness, 
ft. in. 
13 0 
Totals, 
ft. in. 
13 0 
Geavels and CiATS. — (“ Head.”) 
2 
11 
0 
24 
0 
Saitd. 
3 
4 
0 
28 
0 
Black Clay. 
4 
2 
0 
30 
0 
“ Heady Geottot).” 
.5 
6 
0 
36 
0 
Sand. 
6 
3 
6 
39 
6 
Clay. 
7 
4 
6 
44 
0 
Saot). 
* See Plate LIV. 
