TESTri WYOMING AND ALASKA. 
229 
ANALYSES. 
Coal. 
Moisture 
Volatile matter 
Fixed carbon 
Sulphur 
Test 69. 
13.02 
37. 56 
34.03 
15.37 
Test 69. 
Gas by volume. 
Carbon dioxide (CO-,) 
11 1 
Carbon monoxide (CO) 
19 8 
Hydrogen (H2) 
13 3 
Methane (CH<) 
3 5 
Nitrogen (N2) 
100.00 
7.36 
52 3 
100.0 
WASHING TEST. 
Test 129, Wyoming, No. :>>. 
Size as shipped, run of mine. Size as used, crushed to 2 inches. Jig used, Stewart modified. 
Raw coal pounds . . 24, 120 
Washs (1 coal do 20,000 
Refuse do. . . . 4,060 
ANALYSES. 
Test 129. 
Moisture 
Volatile matter 
Fixed carbon. . 
Ash 
Sulphur 
COKING TEST. 
Test 52, Wyoming No. :>, washed. 
Size as shipped, run of mi:i r \ Size as used, finely crushed. Duration of test, 27 hours. 
Remarks.— No coke produced. 
ALASKA COAL. " 
Coal from Bering River field. — The Bering River coal field b is located near Controller Bay, 
on the Pacific coast of Alaska, in latitude 60° 20' to 60° 30' N. and longitude 143° 15' to 
144° 45' W., and covers an area of about 70 square miles, including 25 square miles of anthra- 
cite and 45 miles of semibituminous coking coal. The seams are numerous and very large 
(several exceeding 20 feet in thickness). The average quality of the Bering River coal is 
excellent, several of the seams being remarkably low in both ash and sulphur. 
This coal is not now available for sale in any market, but there are prospects of transporta- 
tion soon being provided to tide water on Controller Bay, Katalla Bay, or Prince William 
Sound. 
Coal from Matanuska River field. — The Matanuska coal field c is located about 30 to 75 
miles northeast of Cook Inlet, Alaska, in latitude 61° 40' to 62° N. and longitude 148° to 149° 
10' W., and covers an area of at least 70 and possibly several hundred square miles of coal in 
.he Matanuska Valley. The deposits include anthracite, semibituminous coking coal, and 
lower grade of bituminous coal. The seams are of good thickness and well situated for 
mining. Transportation to Resurrection Bay on the Pacific coast and into the interior may 
oon be provided by the Alaska Central Railway, now under construction. 
a The analyses given herein are all of field samples collected by Mr. G. C. Martin. 
b See Martin, G. C, Bull. U. S. Geol. Survey No. 225, 1904, pp. 305-382; No. 250, 1905, pp. 11-36; No. 259, 
]905, pp. 140-150; No. 284, 1906, pp. 65-77. 
cSee Martin, G. C. Bull. U. S. Geol. Survey No. 284, 1906. pp. 88-100; No. 289, 1906. 
