167 
SECTION No. 6—Continued 
Section of the Coal Measures of the Forest of Dean 
Taken from the Memoirs of the Geological Survey, 1856, Vol. I. 
Description of Measures 
60—Coal (Little ee 
61—Under-clay .. 
62— Sandstone : 
63—Argillaceous shale ... 
64—Sandstone .. 
65—Argillo arenaceous shale 
66—Argillaceous shale ... 
67—Coal (Parkend High apes 
68—Under-clay .. x 
69—Argillaceous shale . 
70—Gray soft sandstone 
71—Argillaceous shale ... 
72—Coal . 
73—Under- ‘clay .. 
74—Sandstone . 
75—Argillaceous shale . 
76—Coal . ae 
77—Carbonaceous shale. 
78—Coal . Ree 
79—Under-clay 2a 4 
80—Argillaceous shale ... 
81—Soft under-clay_... 
. } Starkey 
0 coa. 
82—Coal (Little coal) ... 
83—Under-clay ... ua 
84—Coal ... ae 
85—Under-clay ... oe 
86—Argillaceous shale ... 
87—Arenaceous shale ... 
88—Argillaceous shale ... 
89—Coal (Rocky Delf)... Be 
90—Coal and coir bonaccaan shale 
91—Under-clay .. 
ee ee iacoane shale . 
93—Coal .. od 
94—Under- clay .. ass 
95—Argillo arenaceous shale ... 
96—Under-clay .. c 
97—Sandstone 
98—Marl ... 
99—Sandstone 
Thickness 
in feet 
an 
inches 
Hh 
ct 
~ 
B 
(— 
DO Donwwr’ 
bat S 
COnMnoocoFrO: 
— 
| 
| 
wonrnww 
oooo-!l 
Ke | 
Aarwo 
CODD 
| 
| 
a 
meow bk 
ooo & 
| oor 
| one 
a 
no = bo 
| (==) on 
— 
co} owor 
Qo 
mMmoonwnww 
onmnooon| oonms 
_ 
Distance 
between 
each 
coal seam 
ft. in. 
1066 2 
1091 5 
1122 9 
1142 3 
1144 5 
1150 11 
1175 11 
1191 10 
