Mines and Mineral Statistics. 
212 
They have an underground engine which draws the coal a 
distance of one mile from the winding shaft, and one of Cameron’s 
Patent Pumping Engines for draining the mine, which pumps 
500 gallons of water per minute from a depth of 220 feet, and 
Mr. Croudace informs me that it is the only engine of its kind in 
the Colony. 
The ventilating furnace is one of the largest in New South 
Wales, having a fire surface of 20 feet by 10 feet, equal to 200 
feet and is capable of being extended to 26 feet by 10 feet. 
This colliery raised 127,768 tons of coal, valued at £80,488 16s. 
in 1874, and employed daily, when working, 224 miners forty- 
four labourers and others and thirty four boys ; also twenty-one 
horses underground. Thomas Croudace, Esq., is the Colliery 
Manager, 
Shale and grey post, with Gloesopteris, 
Pliyllotheca, &c. 
Coal 0 8 
Band 0 OJ 
Dnnl 
2 5 
Band 
o 
o 
Coal 
2 4 
Band 
o 
o 
Coal 
3 n 
Coal (inferior) 
1 0 
Fh’e-clay and grey post. 
Total ... 10 2 
of coal worked at the Co-operative 
uoiiiery, ueiungiug tu . 
a distance of about seven miles by rail from the ISewcastle 
Harbour. (See E on plan No. 1.) Here this seiim of coal is 
about 10 feet 2 inches in thickness, 8 feet 5 inches or thereabouts 
being worked, on an average. It is a free-burning, bituminous 
coal, used for household, steam, smelting, gas, cokmg, and black- 
