Se 
Lee 
pee 
= aeak 
Geology. 285 
not only ascertained the proportions of moisture, volatile matter, ashes 
and coke, but also the chemica composition of the ashes, the proportion 
aa and the relative proportions of carbon, hydrogen, oxygen and 
trogen. 
The Breckenridge cannel coal afforded by proximate analysis (p. 211): 
Moisture 1:30, volatile combustible matters 54:40, carbon in the coke 32-00, 
ashes 12°30 = 100, 
age other specimens, the volatile matters varied from 55°70 to 
per cent, the coke from 28°30 to 44°30, the ashes from 7:0 to 12°30 
Per cent, in the undried coal. The ashes contained 
Silica 3-49, alumina and oxyd of iron 7°78, lime 0°55, magnesia 0:39 = 12°21. 
By ultimate analysis it afforded 
Carbon 68'128, hydrogen 6489, sulphur 2°476, nitrogen 2274, oxygen and loss 5°833, 
ashes 14°800 = 100. 
‘ Excluding the ashes and sulphur, the Breckenridge coal and the Bog- 
ead of Scotland compare as follows : 
B f Carbon. Hydrogen. Nitrogen. Oxygen. 
reckenridge, 82-355 1-844 2749 7051 
Boghead, 80-487 11235 0°874 6-726 
fe The Breckenridge coal is already noted for the mineral oils obtained 
om it by distillation. It affords per 100 Ibs. 32 Ibs. of crude oil. About 
eoils. Ammoniacal Coke. Gas 
B . water. (cub. in.) 
He cnridge eannel, 318-20 5210 455 445 
U Udock’s cannel, 248'50 54:50 589 370 
Mae company’s coal, bottom part, 148 38 750 465 
Rr 8 five-foat, or main coal, 15650 64°75 684 567 
bert’s, or Muddy river coal, 10210 119°80 659.50 370 
House coal, 108 "3 714 46 
Youghiogheny coal, 136 52 710 545. 
The topo. . ‘ f bs 
tions graphical report of Mr. Lyon contains an account ot observa- 
Upon the Eastern ‘ad Western Coal Fields, tracing out the beds of 
| B . : 
n extending from the Lower Silurian (Blue limestone) to the beds 
base of in Carter Co., showed a total thickness 
the coal measures; 75 
Tigert’s creek); 100 feet muddy shale with thin beds of lime- 
0 feet subcarboniferous limestone 
