TESTS ALASKA AND BRAZIL. 
231 
MATANUSKA COALS. 
Laboratory number. 
Thickness of coal seam feet . 
Air-drying loss per cent. 
Moisture do. . . 
Volatile matter do. .. 
Fixed carbon do... 
Ash do... 
Sulphur do. . . 
2217 
5 
0.80 
2.24 
23. 08 
70.21 
4.47 
.50 
11.7 
4. GO 
10.05 
36. 05 
48. 90 
5.00 
.25 
G 
(a) 
4.03 
34.84 
49. 31 
11.82 
.38 
222G 
2.6 
(a) 
5.56 
36.52 
51. 32 
6. GO 
.42 
1 
(a) 
2.50 
28. 32 
58.82 
10. 3G 
.58 
2214 
1.60 
4. 3G 
18.92 
61.19 
15.53 
.37 
221G 
7 
1.00 
2. 4G 
17.01 
53. 23 
27.30 
Laboratory number. 
Thickness of coal seam feet. 
Air-drying loss per cent. 
Moisture do. . . 
Volatile matter do. . . 
Fixed carbon do... 
Ash do . . . 
Sulphur. 
Calories. 
.do. 
12.3 
1.G0 
2.58 
19.14 
67. 46 
10.82 
.57 
9.9 
1.80 
2.93 
21.85 
63. 09 
12. 13 
.59 
8.6 
4.10 
6.74 
14.96 
65.83 
12.47 
.44 
6,649 
2220 
7.9 
1.90 
2.90 
17.47 
56.15 
23.48 
.46 
2222 
2224 
38 
3.3 
(a) 
(a) 
2.55 
6.60 
7.08 
34.30 
84.32 
48.23 
6.05 
10.87 
.57 
.41 
7,617 
6, 299 
5.2 
(a) 
0.90 
19. 60 
74.60 
4.90 
.60 
8,260 
a Sample too small to be air dried accurately. 
No. 2217. Coal Creek, three-fourths mile above Matanuska River. 
No. 2221. Tsadaka Creek, 4£ miles above trail. 
No. 2225. Tsadaka Creek, 4 miles above trail. 
No. 2226. West bank of Eska Creek, 3 miles above trail. 
No. 2223. West bank of Young Creek, 3 miles above trail. 
No. 2214. South bank of Matanuska River, 3 miles above mouth of Chickaloon Creek. 
No. 2216. Watson's tunnel No. 3, Chickaloon Creek. 
No. 2215. Watson's tunnel No. 2, Chickaloon Creek. 
No. 2218. West bank of Kings Creek, at upper bridge. 
No. 2219. Coal Creek, three-fifths mile above Matanuska River. Sample package not sealed. 
No. 2220. Watson's tunnel No. 5, Chickaloon Creek. 
No. 2222. Matanuska Valley (north side) between Boulder and Hicks creeks, about 18 miles from 
Chickaloon Creek. Small sample. 
No. 2224. Eska Creek, 3 miles above trail. 
No. 2227. Watson's tunnel No. 2, Chickaloon Creek. 
BRAZIL NO. 1. 
Run-of-mine coal from mines near Sao Jeronymo, about 30 miles west of Porto Alegre, 
in the state of Rio Grande do Sul, Brazil. The bed has a thickness of nearly 6 feet and is 
usually separated into two nearly equal portions by a stratum of black clay or slate, which 
varies from 4 inches to 2 feet or more in thickness. The rocks which hold the Brazil coal 
consist of alternate layers of gray sandstones and shales having a thickness of 300 to 400 
feet. The flora found in connection with them appears to place them at the very top of 
the Carboniferous beds, either in the Permian or "Permo-Carboniferous." The bed from 
which this sample was taken occurs near the summit of the coal-bearing series. It is 
found over a wide area in the state of Rio Grande do Sul and appears to extend north- 
ward through the state of Santa Catharina, where it has been mined in the Tubarao district. 
This sample was supplied by the Brazilian Government through Dr. I. C. White, State 
geologist of West Virginia, and was tested to furnish data that will serve as a basis for an 
investigation of coals now undeveloped in West Virginia and other States, which are similar 
in character and geologic age. 
