160 REPORT—1845. 
Found. Olefiant gas. 
Carbon. |i eet s is 8790 85°71 
Hydrogen . «~~. « 12:10 | 14°29 
100°00 100°00 
This result agrees so closely with the composition of olefiant gas, that we 
may calculate the hydrocarbon as that gas, especially as any fault, arising 
from so doing in the case of gases from furnaces, would be appreciable only 
in the fourth decimal place. Gasforth coal, analysed in the manner now 
described, gave the following results :— 
1. Weight of the coalused. . . » » - ee ww 16°7457 
2 9 coke remaining . . ee pte 8s aie Lancs Glad peat 
3 a distilled gases and liquids . gk am er ae cee 
4. a liquid products themselves . . . . «© - 3°3506 
5. a the water contained inthem. . . . . . 1°3027 
6. $ platinum salt obtained fromit . . . . . 04592 
7 s. quantity oftar .. . - 2:0479 
8 ss sulphuretted hydrogen and carbonic aout o. Os Tl, 
9. s sulphuret of lead formed . . « - « - + 0°6423 
10. 9 condensed hydrocarbons . . . . + + + 01262 
11. + the uncondensed gases. . . « « - ~ 14554 
The results of the analysis of the uncondensed gases ae already been 
used in a former calculation, and gave— 
Composition according to volume. 
Hydrogen .. . Se heer ar 77 
Carburetted hydrogen ea hike fe) 
Carbonic oxide. . . . . «© - 393 
Ngtrogeh 21) she eres IS 
71:00 
The 1°4554 grm. obtained by the distillation consist of-— 
grm. 
Hydrogen. . » « + + « « 00836 
Carburetted hydrogen. . . . 1°1758 
Carbonic oxide . . . . - ~- 071901 
Nitrogen . . « s+ + » «+ » 00059 
14.554 
Hence the coal examined is converted by dry distillation into the following 
products :— 
Carbon “sy se oe te eo LE5420". 68925 
I See a eek Aas Sa - 2:0479 . . 12:230 
Water. . . dl oa ~ 12674 . . 7569 
Light carburetted hydrogen Crees o  MV758) 00 eed 
Carbonic oxide. . Cahprmn, S70 SS OT0OL Se a aes 
Carbonic acid . . : POTTS © S\. s 
Condensed hydrocarbons and olefiant gas - 01262 . . 0°753 
Sulphuretted hydrogen . . . - ~- - « 00918 . . 0°549 
EiyGrogen erin eS MOOSIG a) see 
Ammonia* . ... . : . 20853" ‘(Ore 
Mitrogen’ |) Meth ie Te Me if e 00059 . - 0°035 
“Te 7457 00" 100:000 
* The ammonia which may have passed over without condensing in the water is neglected 
in this calculation. 
