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having been taken up for the purpose of prospecting the measures. 
A full report was subsequently made by the Government 
Geologist, Mr. C. S. Wilkinson,* in which he gives the following 
general section : — 
liawkesbury Sandstone and conglomerates ... 300ft. 
Marine beds, conglomerate, sandstone and shales.. 200ft. 
Coal Measures, bituminous shales, sandstones, 
coals, and kerosene shale ... ... ... 120ft. 
620ft. 
Tie mentions three coal seams, two of which only came under 
our notice. The lowest, including its bituminous and shaly 
partings, is sixteen feet thick ; fifty feet above this are Nos. 2 
and 3, which we saw. The immediate coal-bearing measures 
seemed to me to be about fifty feet thick above these seams at 
the point where we struck them, the uppermost or No. 3 being 
three feet, and the lower or No. 2 about two feet in thickness, 
separated by a few feet of strata. The fifty feet of measures 
above are generally seamed with thin irregular bands of coal of 
no workable value. The kerosene shale is poor in quality. The 
measures are very flat, not dipping at a greater angle than 
to 6 L in a south-westerly direction. 
Mr. Wilkinson remarks that the upper part of No. 1, or the 
lowest seam, which contains four feet nine inches of workable coal, 
will yield after due allowance for loss and waste in getting, at 
the rate of 3,778 tons of large coal, and 1,259 tons of small coal 
per acre. 
In the present condition of the country the working of these 
seams is hopeless, the simplest method would probably be by 
sinking from a convenient spot on the liawkesbury plateau above. 
Mr. Wilkinson states that to the westward the Coal Measures do 
not extend beyond Narriga, where the Siluro-Devonian gold- 
bearing formation rises to the surface. So far as our rapid 
movements would allow me to judge, the area to the westward 
of the Clyde River occupied by this formation must be much 
curtailed. So far no indications presented themselves of an 
outcrop of Coal Measures during the ascent of Mt. Bulee, and the 
probability is that in this direction they have thinned out. The 
presence of the kerosene shale enables the position of these beds 
to be ascertained with tolerable accuracy. The researches of the 
Geological Survey Officers appear now to have placed it beyond 
a doubt, that the Lower Coal Measures at Greta, Port Stephens, 
Hartley, Joadja Creek, and other places, are always accompanied 
by bands of this mineral. The presence of the latter in the Clyde 
section will therefore support the reference of the coal-bearing 
beds exposed there to the Lower Coal Measures likewise, in 
* Ann. lieport Dep. Mines, N.S. Wales, for 1885 (1886), pp. 131-2, 
