164 INORGANIC CONSTITUENTS OF THE 
NewcastLE Coat Company’s CoLLIERY 
Specific gravity of coal, 1-283 ; eee of ash in coal, 4°76; 
colour 
of ‘ash, reddis 
Analysis— 
Alumina... “sd <a oe 
Ferric oxide... ns Rig Ss et 
Lime wie ose owe 1-46 Soluble in acid 
Magnesia... tee rege ey : 43°30 
Sulphuric oxide... ee ‘72 
Phosphoric ,, ove eo oe 
Alumina... co seu. aoe 
Ferric oxide... ‘ed int GOS 
Lime Pe PPP es ‘61 Insoluble in acid 
Magnesia... i ivi 63 f 56°34 
Silica ee oo 45°57 
Undetermined and sal ie 36 | 
AvsTRALIAN AGRICULTURAL Company's COLLIERY. 
Specific gravity ms —~ 1-286 ; percentage of ash, 4 “45 
eddish. 
Analysis— — oni 20 
Alumina... $e wg BSS 
Ferric oxide... tas <<. 1a 
Lime ie ne ... 1:98] gofuble in acid 
Magnesia 0c ne seo, trae 0 A 
Sulphuricoxide ... «. ‘97 
Phosphoric ,, ne a 
Alumina... er year: : 
Ferric oxide... Sau woe traces. Insoluble in acid 
Silica ee ee 56-98 
Undetermined and loss... “20 
—_—_—— 
100-00 
