MINERAL COAL. 329 
The following are afew analyses of coals, the moisture 
excluded: 

Carbon.| Hydr.| Oxyg. | Nitr. |Sulph.' Ash. 


1 | Anthracite, Pennsylvania. .| 90:45 | 2-48] 2°45 ].....)..... 4-67 
2 | Anthracite, Pennsylvania. .| 92:59 | 263} 1°61 /|092)|..... 225 
3 | Anthracite, South Wales...) 92°56 | 38°83 | 2°53 ).....|...-. 1:58 
4 | Caking Coal, Kentucky....| 74:45.| 4:03 | 13 08 | 1:03 | 0:91 | 500 
5 | Caking Coal, Nelsonville, O.| 78°80 | 5:79 | 16°58 | 1°52 | 0-41 | 190 
6 | Caking Coal, South Wales. .| 82°56 | 536! 8°22 | 1°65 | 0:75 | 1°46 
7 | Caking Coal, Northumberl’d| 78°69 | 6-00 | 10°07 | 2°87 | 1:51 | 1°36 
8 | Non-caking, Kentucky..... 77-89 | 5 42) 12°57 | 182 | 3:00) 2:00 
q 1 - 66 \ ”? 
caer, Black Coal) lea | 477 | 9-389-| 1°62-) 0-45)| 1-07 
10 | Non-caking, Briar Hill, O..| 78°94 | 5-92 | 11:50 | 1°58 | 0°36 | 1:45 
11 | Non-caking, S. Staffordshire) 76°40 | 4 62 | 17°43 |..... 0:55 | 1:55 
12 | Non-caking, Scotland...... 76:08 | 5°81 | 13°33 | 209 | 1:23 | 1°96 
13 | Cannel Coal, Breckenridge. | 68°18 | 6°49 | 5°83 | 2°27 | 2°48 128 
14 | Cannel Coal, Wigan. ..... 80:07 | 553} 810 | 2°12 | 1:50 | 2% 
15 | Cannel Coal, ‘‘ Torbanite”. | 64:02 | 820] 5°66 | 055 | 0:50 <0 &: 
16 | Albertite, Nova Scotia..... 86°04 | 8°96 | 1:97 | 2°93 | trace) 0:10 
17 | Brown Coal, Bovey........ 66°31 | 5°63 | 22°86 | 0°57 | 2°36 | 2°27 
18 | Brown Coal, Wittenberg... | 64:07 | 5 03 | 27°55 |.....|..... 3°00 
19 | Peat, light brown (imperfect), 50°86 | 5°80 | 42°57 | O77 |.....)..... 
20 | Peat, dark brown.......... DOGAT Ono ial Oba) OE Mok: 
Pile ple Cate MDEACK. (0s. ts) asics <2 59°70 | 5°70 | 88:04 | 156 )..... 
Pamleat, » DIAC. 4 obi as a0 & were OOM FPa Si ae OWal2209 Vesa |e aes 









The coal, No. 4, from ‘‘ Roberts’ Seam,” Muhlenburg County, Ken- 
tucky, has specific gravity=—1:26 ; No. 9, from ‘‘ Wolf Hill,” Daviess 
County, Indiana, has specific gravity =1:'275. 
No. 13, the Breckenridge cannel, of Hancock County, Kentucky, 
consists, when the ash is excluded, of Carbon 82°36, hydrogen 7:84, 
oxygen 7°05, nitrogen 2°75, and the Bog-head cannel of Scotland, called 
also torbanite, contains Carbon 80°39, hydrogen 11°19, oxygen 711, ni. 
trogen 1°31. 
The ‘‘ Mineral Charcoal ” of coal beds differs little in composition 
from ordinary bituminous coal ; there is less hydrogen and oxygen. 
Rowney obtained, for that of Glasgow and Fifeshire, Carbon 82:97, 
74-71; hydrogen 3:34, 2°74; oxygen 759, 767; ash 608, 1486 The 
nitrogen is included with the oxygen ; it was 0°75 in the Glasgow char- 
coal. Exclusive of the ash, the composition is Carbon 88:36, 87°78 ; 
hydrogen 3:56, 321; oxygen 728, 9°01. It has a fibrous look, and 
occurs covering the surfaces between layers of coal, and has been ob- 
served in coal of allages. It is soft and soils the fingers like char 
coal; one variety of it is a dry powdcr. 
