Alumina 26.48
Oxide of iron 12.98
Lime 20.19
Magnesia 3.42
Sulphuric acid 9.47
Alkalies and loss 0.20
------
100.00

From these figures the composition of the coal itself calculates as
under--

Water 20.09
Carbon 53.58
Hydrogen 4.23
Oxygen 16.23
Nitrogen 0.80
Sulphur 0.36
Silica 1.29
Alumina 1.25
Oxide of iron 0.61
Lime 0.95
Magnesia 0.16
Sulphuric acid 0.44
Alkalies 0.01
------
100.00

One ton furnished 8,458 cubic feet of gas and 8 cwt. of coke.