Mines and Mineral Statistics. 
209 
Shalo and grey post, full of GHossopteris, 
Splienopteris, and Phyllotlieca. 
Coal 
ft. in. 
i 0 
Pand 0 1 
Coal 1 1 
Coal, inferior (Morgan) 1 0 
t'oal 0 h 
Btoui' biiinl 0 ji 
Coal 0 10 
Coal and bands (Jerry Wag) 0 10 
Coal 2 2 
Total thickneBB .. . 10 6^ 
G-rey post, with Glossoptcris, Phjllothcca, 
<kc. 
This section represents the scam of coal worked hy the Austra- 
liau Agricultural Company, at a depth of 200 feet, at their 
Hamilton pit, near JS'ewcastle, from urulertlicir freehold land and 
that leased from E. C. Merewether, Plstj. (sec A on plan No. 1). 
It averages here 10 leet G inches in thickness, uiid is idejitical 
with that numbered 6 on the vertical section of ilte Newcastle 
Coal Measures. (8ee section A, No. 7.) It is very free from faults, 
lies very regular, and has au average dij) of about 1 in 20 to the 
south-east. It is a free-burning bituminous coal, suitable for 
household, steam, smelting, gas, coking, and blacksmitli purposes, 
and has an average specific gravity of about l-2:j to 1*20. 
This Company has 4,000 acres of freeliold land in this district, 
720 acres of leasehold, and two pits at M ork raising coal from this 
seam— one by a 00 h.-p. horizontal engijie, and tlie otlier by :i 00 
h.-p. horizontal engine — both engines being suitable lor winding 
and pumping ; two underground horizontal engines, for drawing 
loaded skips to the pit-bottom and working force-pumps — one t 3U 
h.-p., and the other 15 h.-p, j two 14-ion locomotive engines aud 
one 80-toii lank engine, for taking the coal from tlie pits to the 
Company’s staiths, a distance of less than 2 miles, wlicrc ships of 
large tonnage are loaded. This Company raised 105,404 tons of 
coal, valued at £120,063, in 1874, aud employed ou an average 
