210 
Mines and Mineral Statistics^ 
596 men and boys each day the colliery was at work. E. C. 
Merewetber, Esq., is the Greneral Superintendent, and J. B. 
Winship, Esq., the Colliery Manager. 
Shale and grey post, -with Grlossopteris, 
Phyllotheca, &c. 
ft. in. 
Coal 1 0 
Band 0 0^ 
Coal 2 5 
Stone band 0 1 
Coal 2 3 
Stone band 0 1 
Coal 4 3 
Total thickness .. . 10 1^ 
Fireclay, 4 ft. 
Coal, 1ft. 8 in. 
Grey post. 
The above is a section of the seam of coal worked by the 
Waratah Coal Company, at Waratah, near Newcastle. ^ (See B on 
plan No. 1, and No. 6 on vertical section, lettered A, section No. 7.) 
It is worked by adits driven into the hill side, where the coal 
averages about 10 feet 1 inch in thickness, 9 feet 1 inch of which 
is generally mined. It is a free-burning bituminous coal, suitable 
for household, steam, smelting, gas, coking, and blacksmith pur- 
poses, has an average specific gravity of 1'23 to 1*29, and lies very 
regular, dipping at the rate of about 1 in 30 to the south. They 
