334         CONTRIBUTIONS   TO   ECONOMIC   GEOLOGY,    1907,   PART   II. 
Analyses  of  coal  samples  from  the  Grand  Mesa  coalfield,  Colorado — Continued. 
Distri 
ct 
Somerset. 
Chara 
Bituminous  to  anthracite. 
Labor 
5760.      5533. 
5531. 
5532. 
5406. 
5405. 
5807. 
5529. 
5344. 
5528. 
Samp] 
e  as  received : 
3.37 
35.  09 
53.02 
8.52 
.62 
5.41 
71.18 
1.59 
12.68 
7,238 
13,028 
2.41 
29.14 
58.38 
10. 07 
.52 
4.74 
71.93 
1.18 
11.56 
7,020 
12,636 
2.34 
34.97 
58.42 
4.27 
.54 
5.37 
75.31 
1.31 
13.  20 
7,556 
13,601 
2.64 
28.84 
63.31 
5.21 
.66 
5.05 
76.81 
1.28 
10.99 
7,516 
13,529 
5.49 
35.65 
55.79 
3.07 
.60 
5.76 
73.22 
1.22 
16.13 
7,343 
13,217 
5.96 
23.92 
C6.  95 
3.17 
.47 
5.68 
74.08 
1.36 
15.24 
7,358 
13,244 
21.44 
29.13 
44.75 
4.68 
.33 
19.23 
31.04 
44.35 
5.38 
.31 
8.94 
34.23 
52.04 
4.79 
.57 
5.41 
68.76 
1.41 
19.06 
6,837 
12,307 
4.22 
2 
Volatile  matter 
3.98 
76.02 
Ph 
/Ash 
15.78 
88 
+^ 
0 
Ca 
Bi 
Loss  c 
ing. 
4,372 
7,870 
4,871 
8,768 
6,815 
itish  thermal  units 
f  moisture  on  air  dry- 
12,267 
.80 
1.40 
1.10       1.70 
2.00 
2.70 
9.80 
10.10 
1.70 
3.20 
Air-dr 
II 
ied  sample: 
Moisture 
Volatile  matter 
Fixed  carbon 
2.59 
35.37 
53.45 
8.59 
.63 
5.36 
71.75 
1.60 
12.07 
7,296 
13,133 
1.03 
29.55 
59.21 
10.21 
.53 
4.64 
72.95 
1.20 
10.47 
7,120 
12,815 
1.25 
35.36 
59.07 
4.32 
.55 
5.31 
76.15 
1.32 
12.35 
7,640 
13,752 
.96 
29.34 
64.40 
5.30 
.67 
4.94 
78.14 
1.30 
9.65 
7,646 
13,763 
3.56 
36.38 
56.93 
3.13 
.61 
5.65 
74.72 
1.25 
14.64 
7,493 
13,487 
3.35 
24.58 
68.81 
3.26 
.48 
5.53 
76.13 
1.40 
13.20 
7,562 
13,612 
12.91 
32.29 
49.61 
5.19 
.37 
10.16 
34.53 
49.33 
7.37 
34.82 
52.  94 
1.06 
4.11 
78.53 
Hh 
fAsh 
5.98  1     4.87 
16.30 
\Sulphur 
.34 
.58 
5.31 
69.95 
1.44 
17.85 
6,955 
12,520 
.91 
ti  J 
P 
Oxvgen 
Ca 
Bi 
Thick] 
pled 
lories 
itish  thermal  units 
less  of  part  of  bed  sam- 
4,847 
8,725 
5,418 
9,753 
7,040 
12,673 
Ft.  in.  i  Ft.  in. 
4    5       4    9 
Ft.  in. 
6    4 
Ft.  in. 
6    4 
Ft.  in. 
5  10 
Ft.  in. 
5 
Ft.  in. 
7 
Ft.  in. 
7 
Ft.  in. 
7 
Ft.  in. 
5    6 
5530.O  Sec.  26,  T.  1  S.,  R.  1  W.  (Ute  principal  meridian),  80  feet  from  mouth  of  opening  in  deserted  mine. 
5534.6  Sec.  18,  T.  4  S.,  R.  3  E.  (Ute  principal  meridian),  160  feet  from  mouth  of  opening. 
5724.c  NW.  I  SE.  \  sec.  34,  T.  10  S.,  R.  98  W.,  165  feet  from  mouth  of  opening. 
5535.a  Sec.  17,  T.  12  S.,  R.  97  W.,  125  feet  from  mouth  of  opening. 
5541. c  SE.  J  SE.  \  sec.  34,  T.  13  S.,  R.  96  W.,  2,000  feet  from  mouth  of  opening. 
5542.  c  NW.  J  NW.  \  sec.  35,  T.  13  S.,  R.  96  W.,  285  feet  from  mouth  of  opening. 
5540.  c  Sec.  19,  T.  13  S.,  R.  95  W.,  800  feet  from  mouth  of  opening. 
5522.  c  Sec.  16,  T.  13  S.,  R.  95  W.;  upper  bench,  500  feet  from  mouth  of  opening. 
5539. c  Sec.  16,  T.  13  S.,  R.  95  W.;  lower  bench,  500  feet  from  mouth  of  opening. 
5521.  c  SW.  \  SE.  i  sec.  11,  T.  13  S.,  R.  95  W.,  200  feet  from  mouth  of  opening. 
5523. c  NE.  J  NE.  \  sec.  13,  T.  13  S.,  R.  95  W.,  110  feet  from  mouth  of  opening. 
5524.a  Sec.  15,  T.  13  S.,  R.  94  W.,  250  feet  from  mouth  of  opening. 
5538.tt  Sec.  12,  T.  13  S.,  R.  94  W.,  200  feet  from  mouth  of  opening. 
5525.  c  SW.  J  NW.  i  S8C.  23,  T.  13  S.,  R.  93  W.,  50  feet  from  mouth  of  opening. 
5537. c  SE.  |  NW.  \  sec.  26,  T.  13  S.,  R.  93  W.,  2'.0  feet  from  mouth  of  opening. 
5536. c  Sec.  30,  T.  13  S.,  R.  92  W.,  800  feet  from  mouth  of  opening. 
5552.6  Sec.  21,  T.  13  S.,  R.  92  W. 
5551.  c  NW.  I  SE.  J  sec.  24,  T.  13  S.,  R.  92  W.;  upper  bench,  300  feet  from  mouth  of  opening. 
5526.  c  NW.  J  SE.  \  sec.  24,  T.  13  S.,  R.  92  W.;  lower  bench,  300  feet  from  mouth  of  opening. 
5527.  c  SW.  I  SW  i  sec.  17.  T.  13  S.,  R.  91  W.,  300  feet  from  mouth  of  opening. 
5700.  c  NE.  I  NW.  J  sec.  15,  T.  13  S.,  R.  91  W.,  700  feet  from  mouth  of  opening. 
5533. c  NE.-i  NE.  \  sec.  15,  T.  13  S.,  R.  91  W.;  upper  bench,  700  feet  from  mouth  of  opening. 
5531. c  NE.  \  NE.  \  sec.  15,  T.  13  S.,  R.  91  W.;  lower  bench,  700  feet  from  mouth  of  opening. 
5532c.  NE.  I  NE.  J  sec.  15,  T.  13  S.,  R.  91  W.;  lower  bench,  500  feet  feet  from  mouth  of  opening.     Coal 
said  to  be  "dead." 
5406.O  Sec.  11,  T.  13  S.,  R.  90  W.,  70  feet  from  mouth  of  opening. 
5405.«  Sec.  32,  T.  13  S.,  R.  90  W.,  100  feet  from  mouth  of  opening. 
5529.6  Sec.  22,  T.  14  S.,  R.  90  W. 
5344.c  Sec.  10(?),  T.  13  S.,  R.  89  W.,  CO  feet  from  mouth  of  opening. 
5528.  c  Prospect  south  of  Mount  Gunnison. 
a  Samples  represent  coal  iVom  freshly  cleared  sections  in  abandoned  mines. 
b  Samples  represent  weathered  coal. 
c  Samples  represent  fresh  coal. 
