KOCK   SPRINGS    COAL   FIELD,    WYOMING. 
271 
Analyses  of  coal  samples  from  the  Rock  Springs  field,  Wyoming — Continued. 
Name 
Lower  part  of  Mesaverde. 
Name 
Rock  Springs. 
Labor 
•>i;9S. 
5697. 
6043. 
5370. 
5309. 
5368. 
5357. 
5373. 
5699. 
5812. 
Sample,  as  received: 
[Moisture 
13.81 
13.63 
18.35 
17.71 
21.22 
14.00 
10.94 
13.  69 
17.38 
22.93 
H 
Volatile  matter 
31.72 
31.65 
31.55 
28.17 
33.30 
37.83 
30.80 
38.28 
35.09 
33.69 
u  < 
Fixed  carbon 
49.50 
■is.  7s 
48.46 
51.80 
43.  80 
45.  00 
42.70 
44.61 
43.47 
39.35 
P-t 
/Ash 
4.97 
5.94 
1.64 
".  32 
1.68 
3.17 
15.56 
3.42 
4.06 
4.03 
[Sulphur 
Hydrogen 
.88 
.78 
.52 
.64 
.32 
.48 
1.01 
.59 
.87 
.74 
■ 
5.77 
5.48 
5.49 
5.56 
4.83 
4.73 
5.61 
r< 
Carbon 
61.  92 
61.31 
57.37 
54.42 
53.95 
55.13 
48.71 
>-> 
Nitrogen 
1.14  |     1.33 
1.23 
1.11 
.87 
1.24 
1.26 
Oxygen 
25.  32     25. 16 
33.75 
30.  91 
23.78 
34.89 
39.65 
Calories 
5,996  |  5,850 
5,374 
5,446 
5,028 
5,151 
5,214 
4,937 
4,633 
4,416 
British  thermal  units 
10,793    10,530 
9,673 
!l.so;i 
9,050 
9,272 
9,385 
8,887 
8,339 
7,949 
Loss  of  moisture  on  air  drying 
4.  90       5.  00 
12.50 
6.10 
12.30  |     3.50 
1.50 
2.70 
5.30 
8.00 
Air-dried  sample: 
Moisture 
9.37 
9.08 
6.  09 
12.36 
10.17 
10.88 
9.58 
11.30 
12.76 
10.23 
K 
Volatile  matter 
33.  35 
33.  32 
36.00 
30.00 
37.97 
39.20 
31.27 
39.34 
37.05 
36.62 
2 
Fixed  carbon 
52.05 
5.23 
51.35 
6.25 
55. 38 
1.87 
55.17 
2.47 
49.94 
1.92 
46. 63 
3.29 
43.35 
15.80 
45.85 
3.51 
45.90 
4.29 
42.77 
Ph 
/Ash 
4.38 
[Sulphur 
.92 
.82 
.59 
.68 
.36 
.50 
1.03 
.61 
.92 
.80 
Hydrogen .-... 
5.50 
5.18 
4.69 
4.78 
4.73 
4.55 
5.13 
—  J 
Carbon 
65.11 
64.  54 
65.57 
62.05 
54.77 
56.66 
52.95 
P 
Nitrogen 
1.20 
1.40 
1.41 
1.27 
.88 
1.28 
1.37 
Oxygen 
22.04 
21.81 
25.87 
29.  62 
22.79 
33.39 
35.37 
6,305 
fi.158 
6,142 
5,800 
10,  440 
5,733 
5,338 
9,608 
5,293 
5,074 
9,134 
4,892 
8,806 
4,800 
8,640 
British  thermal  units 
11,349    11,084 
11, 055 
10,319 
9,528 
Ratios— 
C-s-II 
11.83  |  12.42 
13.98 
12.96 
11.57 
12.46 
10.19 
C+-  (0  + Ash) 
2.38       2.22 
2.37 
1.97 

1.42 
1.54 
1.33 
Ft.  in.    Ft.in,\ 
Ft.  in. 
Ft.  in. 
Ft.  in. 
Ft.  in. 
Ft.  in. 
Ft.  in. 
Ft.  in. 
Thicki 
less  of  coal 
8    6       6    9    
4 
3 
7  10 
3    2 
3    6 
5    4 
1    7 
Name  of  formation . 
Lower  part  of  Mesaverde. 
Upper  part  of  Mesaverde. 
Name  of  coal  group . 
Rock  Springs. 
Almond. 
Laboratory  No.. 
5372.      5371.      5813.      5376.      5814.      5809, 
Sample  as  received: 
{Moisture 
Volatile  matter. .. . 
Fixed  carbon 
/Ash 
nSulphur 
.   Hydrogen 
~>\  Carbon 
p  Nitrogen 
[Oxygen 
Calories 
British  thermal  units 
Loss  of  moisture  on  air  drying      4. 90 
16.39 
36.78 
38.  62 
8.21 
.95 
4.79 
50.09 
1.24 
34.72 
4,511 
8,120 
Air-dried  sample: 
I  Moisture 12.08 
Volatile  matter 38.68 
Fixed  carbon 40.  (il 
(Ash 
nsuiphuT I  loo 
.  Hydrogen 4. 47 
"Carbon 52.67 
Nitrogen 1.30 
[Oxygen 31.93 
P 
Calories. 
British  thermal  units 
Ratios— 
C-r-H 
C-H(0  +  Ash) 
Thickness  of  coal. 
4,743 
8, 538 
11.78 
1.43 
/•'/.  in. 
4    8 
28.01 
32.04 
30.  Ofi 
3.89 
.70 
3,963 
7,133 
27.38 
30.34 
37.74 
4.  51 
.77 
5.81 
45.12 
1.26 
42.50 
4,103 
7.3S5 
26.82 
33.42 
35.  61 
4.15 
.37 
5.39 
46.18 
1.00 
42.91 
4,001 
7.202 
6042.   5804.   5353.   5351 
29.50 
30.59 
35. 16 
4.75 
.37 
5.86 
44.50 
1.10 
43.42 
3,772 
6,790 
33.79 
29.35 
30.71 
6.15 
.64 
5.86 
39.29 
1.16 
46.90 
3,356 
6,042 
13.14 
30.61 
51.88 
4.37 
.42 
5.48 
61.34 
1.35 
27.04 
5,864 
10.  555 
14.75 
31.98 
48.99 
4.28 
.43 
5.05 
58.74 
1.12 
30.38 
5,478 
9,  SCO 
13.34 
36.54 
41.59 
8.53 
.46 
4.45 
59.45 
1.13 
25.98 
5,632 
10,138 
16.  01 
35.02 
44.58 
4.39 
.76 
5.04 
59.36 
1.19 
29.26 
5,474 
9,853 
15.  90       9.  50 
14.40 
38.10 
42.88 
4.62 
.83 
4,712 
8,482 
19.76 
33.52 
41.70 
5.02 
.85 
5.25 
49.  86 
1.39 
37.  03 
4,534 
8,060 
10.59 
1.30 
8. 70     10. 90     12. 20       6. 10       4. 
,90 
2.40 
Ft.  in. 
3  10 
Ft.  in. 
4 
19.85 
36.61 
39.00 
4.51 
.41 
4.84 
50.58 
1.10 
38.53 
4,382 
7,S88 
10.42 
1.17 
Ft.  in. 
5 
20.88 
34.33 
30.  40 
5.33 
.41 
5.22 
49.94 
1.24 
37.86 
4,233 
7,620 
9.56 
1.  15 
24.59 
33.43 
34.98 
7.00 
.73 
5.13 
44.75 
1.32 
41.07 
3,822 
6,881 
8.71 
.93 
Ft.  in.    Ft.  in. 
2    4 
7.50 
32.  00 
55.25 
4.65 
.45 
5.11 
65.33 
1.44 
23.02 
6,245 
1 1 . 2 1 1 
14.64 
1.95 
Ft.  in. 
6    4 
10.45 
33.59 
51.46 
4.50 
.45 
4.75 
61.70 
1.17 
27.43 
5.  754 
10,357 
12.99 
1.93 
12.55 
36.87 
41.97 
8.61 
.46 
4.39 
59.99 
1.14 
25.41 
5, 683 
10, 230 
13.66 
1.81 
13.94 
35.88 
45.68 
4.50 
.78 
4.89 
60.82 
1.22 
27.79 
5, 609 
10,095 
12.44 
1.88 
Ft.  in. 
5 
Ft.  in. 
4  10 
Ft  in. 
6  4 
