96 PEELIMINAEY REPOBT ON COAL-TESTING PLANT, [bull.261 
Average composition of coal and gas. 
COAL. Percent. 
Moisture 11. 51 
Volatile matter 36. 04 
Fixed carbon 42. 37 
Ash 10.08 
Sulphur 2.61 
gas by volume. Per cenl 
Carbon dioxide 9.8' 
Oxygen 2J 
Carbon monoxide 14. li 
Hydrogen 9. 5' 
Methane 6. Of 
Nitrogen 60. 1; 
100.0 
The gas from Indiana No. 1 coal was of uniformly good quality. N< 
trouble was experienced in working the bed, and the coal may be con 
sidered an excellent producer fuel. It yielded a fair amount of goo< 
black tar. 
COAL, INDIANA NO. 2; PRODUCER-GAS TEST NO. 13.* 
[Coal from Electric mine of the T. D. Scales Coal Company, Boonville, Ind.; tested November 28 aia 
29, 1904.] 
Duration of test hours. . 7 
Total coal consumed in producer pounds. . 2, KM) 
Moisture in coal per cent . . 8.7 
Dry coal consumed in producer pounds. . 1 , 91 7 
Refuse from dry coal per cent . . 10.6 
Total refuse from coal p< mi ids . . 204. 1 
Total combustible consumed in producer do 1, 712. 1 
( 'oal consumed, pounds per hour. 
Coal consumed in producer 300 
Dry coal consumed in producer 274 
Combustible consumed in producer 244. {I 
Equivalent coal used by producer plant 338 
Equivalent dry coal used by producer plant 312 
Equivalent conbustible used by producer plant 278. \ I 
British thermal units. 
Per pound of coal as fired 11, 822 
Per pound of dry coal 12, 953 
Per pound of combustible : 14, 500 
Per cubic foot of standard gas 1 591 
From standard gas per pound dry coal burned in producer 10, 140 
From standard gas per hour per brake horsepower 11, 750 
Gas produced, cubic feet (reduced to standard). 
Total 122, 160 
Per hour 17, 450 j 
Per pound coal consumed in producer 58. 
Per pound dry coal consumed in producer 63. 
Per pound combustible consumed in producer 71. 
Per pound equivalent coal used by producer plant 51. 
Per pound equivalent dry coal used by producer plant 55. 
Per pound equivalent combustible used by producer plant 62. 
* Gas-producer hopper leaked 
