212 
Mines and Mineral Statistics. 
engines of 20 and 16 h.-p., one of which raises the coal up the 
shaft, and the other is an underground engine used for hauling 
the coal to the bottom of the pit. The coal sent from this 
colliery in 1874 amounted to 133,805 tons, valued at £84,815 3s., 
and they employed daily when the colliery was at work 265 
miners and labourers, and ninety-seven boys. This colliery is 
owned by Messrs. Alexander Brown and J. C. Dibbs. 
Shale and grey post, with Glossopteris, 
Phyllotheca, &c. ft. in. 
Coal 0 10 
Band 0 0^ 
Coal 2 4^ 
Band 0 0^ 
Coal 1 11 
Stone band 0 0| 
Coal 1 5 
Chitter (Jerry Wag) 0 3 
Coal 0 7 
Penny band 0 0^ 
Coal 1 8| 
Total thiclcnees ... 9 21 
Fire-clay, 3 ft. 
Grey post. 
This denotes the thickness and character of the seam of coal 
worked at the Lambton Colliery near Newcastle, the property 
of the Scottish Australian Mining Company, situated within b 
miles of the Newcastle Harbour. (See D on plan No. 1.) Where 
measured it is 9 feet 2 inches in thickness, 8 feet 5 inches of which 
is worked, and is the seam of coal shown and numbered 6 on the 
section lettered A, section No. 7. It lies very regular, the dip 
being only about 1 in 30 to the south ; a few trap dykes have 
been crossed, on either side of which the coal is “ charred.” It is 
a free-burning bituminous coal, suitable for household, steam, 
smelting, gas, coking, and blacksmith purposes, and has an 
average specific gravity of 1*23 to 1*29. 
There are two main entrances to the mine — one by an adit and 
the other by a shaft 35 feet in depth, the coal being raised up 
this shaft by an engine at the rate of 750 tons of coal in nine 
hours. 
