COALS OF NEW SOUTH WALES. 173 
COALS OF THE SOUTHERN DISTRICT. 
OsBoRNE WALLSEND COLLIE 
Specific gravity of coal, ; “404 ; prentge of ash, 10-20 ; 
colou 
Analysis— ey: 
umina 30°31 ) 
Ferric oxide.. 8°68 
Lime 1:18 ' Soluble in acid 
Magnesi traces, 40-51 
Sulphuric oxide i 
Be eeario a traces. 
umina... 5:24 ont 
Ferric oxide... a oaaa acid 
Silica ai 54-76 : 
100-51 
Innawarra Coat Company, Mount Pleasant Colliery. 
Specific gravity of coal, 1,354 ; percentage of ash, 8°76 ; 
1 rey. 
Analysis— 
Alumina 
Ferric ee ae 
Lime. 
Magnes esia 
Sulphuric oxide 
riba wg ” 
Alum: 
Perio i oxide... 
Sili 
Undetermined and loss 
. traces. 
Di 
34:07 
‘82 | Soluble in acid 
41°75 
es Oe 
. traces. | Insoluble in acid 
51:19 57°69 
100-00 
Buii1 CoLiiery, 
spite gravity of er 1-369 ; ciandeaitebie of ash, 11-28; 
ur of ash, grey. 
Alumina 
Ferric oxide... 
Ma a: 
ee oxide 
pee é 
Silica 
26°84 
7°95 
-67 | Soluble in acid 
3 35-77 
traces. 
7 60 Insoluble in acid 
\ 64:53 
