OCCURRENCE OF COAL. 29 
Between the Cameo and the Bob Cat mines the thickness of the 
upper coal, as exposed in mines and prospects, varies from 4 feet 4 
inches to 9 feet 8 inches, with one or two partings of shale or bony coal 
ranging from 5 inches to 3 feet 5 inches in thickness. 
In the Cameo mine the roof is a good, firm, sandy shale, and the 
floor, where the full thickness of coal is worked, is reported to be sand- 
stone, but usually the total thickness of the coal is not removed. The 
coal has the reputation of being dirty, a condition which is due to the 
partings it contains. The following measurements were made in the 
mine at the localities indicated : 
Sections of coal bed in.the Cameo mine. 
IN THE MAIN ENTRY. 
Ft. in. 
Coal :; 10 
Bono 1 
Coal 3 10 
Bone 1 2 
Coal 2 
10 
11 
IN ROOM 5 OFF MAIN ENTRY 
Ft. 
in. 
Coal 
2 
\ 
Bone 
1 
( !oal 
(i 
? 
8 
7 
AT END OF MAIN ENTRY. 
Ft. 
in. 
Coal 
2 
9 
Bone 
1 
Coal 
6 
8 3 
AT THE NORTHWEST END OF THE WORKINGS 
Ft. in. 
Coal 2 
Bone 1 
Coal 5 11 
At a small prospect about a mile south of Cameo, on the west side 
of the river, the following section was measured; 
Section oj coal bed i mil* south oj Cameo. 
Coal.. 
Hone. 
Coal. 
Bone. 
Coal. 
Ft. 
in. 
1 
8 
■) 
2 
2 
3 
(i 
I 9 
