188 NEW SOUTH WALES COALS. 
By experiment with the calorimeter, 1 lb. of this coal would 
convert 13°21 lbs. of water into water. 
Analysis of Ash. 
Iron sesquioxide ... er ae ie, 
anganese ... a8 oes nee absent 
ime ... 5°05 
— “49 
otash 1:37 
So aia oh me aes ot 
Pho horie acid... os ete ... absent 
— acid os we ed a 
100°00 
GRETA. 
In appearance very similar to the Waratah coal, but with less 
mother-of-coal. Does not soil the es streaky appearance. 
Fracture conchoidal across the layers 
Specific gravity, 1-287. 
Proximate Analysis. 
Moistu 2°25 
Volatile le iydro-carbons... 39°21 
ge "za | Coke 57°18 pe om 
Sulphur ... . 141 
— 
Coke. —Good, firm, not quite so bright as the former, but 
rougher in in the grain and more swollen up. 
Ash.—Loose, buff-coloured. 
Dried at 100° OC. 
Ultimate Analysis. 
bon a 
Hydrogen we oj 
Oaygen = ee; 
Witvoge 148 
100°00 
——————e 
Calculated calorific intensity, 8, 208. of thi ol 
According to experiments with the calorimeter » 1b. 
would convert 13°21 Ibs. of water into steam. 
Pee eet oe Nears PROT ee a 
