COAL  IN  NORTHWESTERN  COLORADO  AND  NORTHEASTERN  UTAH.       315 
Analyses  of  coal  samples  from  the  Uinta  Basin,  Colorado  and  Utah — Continued. 
Name  of  coalfield. 
Vernal. 
Geologic  age  or  formation. . . 
Lower  part  of  Mancos. 
Laboratory  No. 
5512         5509         5754         5755         5513 
5510 
5515 
5517 
5518 
10.22 
32.68 
44.85 
12.25 
.77 
5.31 
60.04 
.96 
20.67 
5,936 
10,685 
Sample  as  received: 
(Moisture 
Volatile  matter 
Fixed  carbon 
/Ash 
I  (Sulphur 
Hydrogen 
Carbon 
Nitrogen 
Oxygen 
Calories 
British  thermal  units. . . 
Loss  of  moisture  on  air  dry- 
ing  
8.64 
36.09 
47.21 
8.06 
1.39 
5.57 
64.10 
1.04 
19.84 
6,434 
11,581 
Air-dried  sample: 
I  Moisture 
Volatile  matter. 
Fixed  carbon... 
fAsh 
'   /A 
[Sulphur 
Lydrogen 
£ \ Carbon 
Nitrogen 
(Oxygen 
Calories 
British  thermal  units. . . 
Thickness  of  coal  bed 
Thickness  of  part  sampled. 
6.01 
37.13 
48.57 
8.29 
1.43 
5.41 
65.95 
1.07 
17.85 
6,619 
11,915 
Ft.  in. 
5  11 
1      2i 
8.65 
36.16 
48.19 
7.00 
1.63 
5.51 
65.10 
1.09 
19.67 
6,466 
11,639 
8.23 
35.69 
45.77 
10.31 
1.26 
5.50 
63.52 
1.00 
18.41 
6,346 
11,423 
8.64 
36.74 
46.67 
7.95 
2.09 
5.75 
65.68 
1.01 
17.52 
6,538 
11,768 
8.21 
34  30 
45.70 
11.79 
1.7(1 
5.39 
61.03 
.98 
19.  05 
6, 152 
11,074 
8.82 
36.60 
48.33 
6.25 
1.66 
5.72 
65.11 
1.09 
20.17 
6,571 
11,828 
9.43 
32.77 
44.94 
12.86 
1.93 
5.12 
57.81 
.90 
21.38 
5,759 
10, 366 
11.66 
34.40 
44.50 
9.44 
1.92 
5.64 
59. 16 
.92 
22.92 
5,875 
10,575 
2.30 
2.50 
2.50 
6.21 
37.12 
49.48 
7.19 
1.67 
5.36 
66.84 
1.12 
17.82 
6,639 
ll,9o0 
6.07 
36.53 
46.  85 
10.55 
1.29 
5.36 
65.02 
1.02 
16.76 
6,495 
11,692 
6.30 
37.68 
47.87 
8.15 
2.14 
5.61 
67.37 
1.04 
15.69 
6,  706 
12, 070 
Ft.  in. 
5    11 
Ft.  in. 
5  8i 
1      3 
Ft.  in. 
5  83 
2      7 
5.86 
35.18 
46.87 
12.09 
1.81 
5.24 
62.60 
1.00 
17.26 
6,310 
11,358 
2.90 
3.00 
6.10 
37.69 
49.77 
6.44 
1.71 
5.56 
67.05 
1.12 
18.12 
6, 767 
12, 181 
6.63 
33.78 
46.33 
13.26 
1.99 
4  94 
19. 29 
5,937 
10, 687 
7.59 
35.98 
46.55 
9.88 
2.01 
5.39 
61.88 
.96 
19.88 
6,145 
11,061 
Ft.  in. 
4  11 
1      1 
Ft.  in. 
4  11 
2      3£ 
Ft.  in. 
7      2§ 
1      2 
Ft.  in. 
7      2h 
3      6§ 
3.30 
7.16 
33.79 
46.38 
12.67 
.80 
5.11 
62.09 
.99 
18.34 
6,138 
11,050 
Ft.  in. 
7  2\ 
1      9 
5514.  Sec.  28,  T.  8  N.,  R.  93  W. 
3463.  Sec.  31,  T.  7  N.,  R.  93  W. 
3461.  Sec.  31,  T.  7  N.,  R.  93  W. 
3462.  Sec.  31,  T.  7  N.,  R.  93  W. 
5516.  White  River,  at  the  mouth  of  Red  Wash,  sec.  11,  T.  2  N.,  R.  101  W. 
5519,  5520.  Raven  Park,  sec.  14,  T.  1  N.,  R.  102  W.  Sample  5519  represents  coal  not  quite  so  fresh  as 
sample  5520. 
5511,5753.  NE.  £SE.  a  sec.  3,  T.  4S.,  R.  20  E.  Sample  included  all  of  the  marketable  coal  of  the  section 
exposed.  Some  of  the  coal  is  divided  into  two  grades,  the  top  and  bottom  benches  being  sold  as  first 
grade  and  the  intermediate  coal  as  second  grade. 
5512,  5509.  W.  £  SW.  \  sec.  2,  T.  4  S.,  R.  20  E.  Sample  5512  represents  lower  two  benches,  marketed  as 
second-grade  coal.    Sample  5509  represents  upper  two  benches,  marketed  as  first-grade  coal. 
5754,  5755.  Lot  10,  SW.  \  sec.  2,  T.  4  S.,  R.  20  E.  Sample  5754  represents  lower  two  benches,  marketed 
as  second-grade  coal.    Sample  5755  represents  upper  benches,  marketed  as  first-grade  coal. 
5513,  5510.  Lots  1  and  2,  NW.  \  sec.  11,  T.  4  S.,  R.  20  E.  Sample  5513  represents  lower  two  benches, 
marketed  as  second-grade  coal.  Sample  5510  represents  upper  two  benches,  marketed  as  first-grade 
coal. 
5515,  5517,  5518.  NE.  \  NW.  \  sec.  2,  T.  4  S.,  R.  21  E.  Sample  5515  represents  lower  14  inches  of  the 
top  bench  of  good,  hard  coal  22  inches  thick,  the  rest  being  bony.  Sample  5517  represents  a  middle 
bench  composed  of  a  very  soft,  flaky  coal;  reported  to  be  of  coking  quality.  Sample  5518  represents 
lower  bench,  which  is  bright  black  and  hard,  and  seemed  to  be  the  best  coal  in  the  bed. 
