NEW SOUTH WALES COALS. 195 
Ash.—Brilliant white colour. 
Dried at 100° C. 
Ultimate Analysis. 
Carbon 80°67 
Hyd 5°30 
Oxygen 158 
Sulphur “87 
Nitrogen “70 
h 10°88 
100-00 
Calculated calorific — 8,276. 
According to experiments with the calorimeter, 1 Ib. of this coal 
would convert 13-21 Ibs. ot water into steam. 
Analysis of Ash. 
Silica 52°57 
Alumina .., 43 
Tron sesquoixide 95 
traces 
ese 
1°35 
Magnesia “60 
Potash 15 
Phosphoric acid (P,O,) ... ne ie ‘17 
Sulphuric acid (SO,)_... ae aie 79 
100°40 
Movunt Kerra Coan 
Possesses much the same characters as the last, only soils the 
fingers rather more readily. 
Specific gravity, 1-379. 
Proximate Analysis. 
i Moisture... ne a 115 
Volatile hydro-carbons ...  - 2351 
Fixed carbon me ais, : nk 
pts 9-70 | Coke, 74°35 per 
Sulphur 
100-00 
Coke.— and much swollen up, with cauli- 
Pat ike —, Bd, fairly 1 lustrous, muc up 
