244 
Mines and Mineral Statistics. 
ft. in. 
Grej post and conglomerate. 
Coal 
Indurated clay 
0>-al 
Indurated clay 
Coiil 
Stone band 
1 1 
0 1 
0 9 
0 Oh 
1 0 
0 2 
Coal 
4 2 
Total thickness 7 3^ 
Black shale and clay. 
This represfiits the section of the same seam of coal opened 
oi)ened out lately by Mr. Bulkeley, at Blackman’s Elat, on tlie 
Mudgee Hoad, about 4 miles from the Wallerawang Hailvvay 
Station, in tlie county of Cook, and about 12 miles north of 
Lithgow Valley. It is here 7 feet' 3| inches in thickness, dips 
to the west, and is of a similar quality to that I have before 
described at Lithgow Valley. The coal is carted to Wallerawang 
Hailway Station, and sold in Bathurst. They have 100 acres of 
laud, sold 50 tons in 1874, and employed three men. 
New Soutu Wales Shale Oil Company, Sydney, and 
Hartley in the county of Cook. 
Here we have one of the richest seams of petroleum oil cannel 
coal ever worked here, or its equal found in any other part of the 
world. It yields 150 to 160 gallons of crude oil to the ton, 
and 18,000 cubic feet of gas per ton, with an illuminating power 
equal to 40 candles. This peculiar and exceedingly valuable 
mineral has a browu streak when scratched, a specific gravity of 
1'0G5, is extremely tough, and when struck with a hammer the 
instrument rebounds from it somewhat similar to hitting a piece 
of wood. 
The seam measures 5 feet at the thickest part in their mine, 
situated at Hartley, 80 miles west of Sydney ; the centre, 3 feet, 
being the richest, and that which yields the 18,000 cubic feet of 
gas to the ton. Thus — 
ft. in. 
Bituminous shale (tops) 1 0 
Petroleum oil cannel coal, yielding 160 gallons of crude 
oil to the ton 3 0 
Petroleum oil cannel coal (bottoms) l o 
