Sioux City Academy of Science and Letters. 175 
VIL. 
CALORIFIC POWER OF LIGNITES FROM NEBRASKA AND 
WYOMING, BASED ON ULTIMATE ANALYSES, TABLE V. 
Calories | Bp. T.U. 
No. SAMPLE AND LOCALITY per 
Kilogram | Per Ton 
1 | Dakota County, Neb., (Table V, No. 1).................. 5296.55 | 9533.8 
2 | Dakota County, Neb., (Table V, No. 2)................-. 5260.02 9468.0 
3 | Rock Springs, Wyo., (Table V, No. 3).............-.- 6619.90 | 11910.4 
VIIL. 
COMPARATIVE CALORIFIC POWER OF OTHER LIGNITES AND 
COALS. 
No. SAMPLE AND LOCALITY nae anne: 
Kilogram | Per Ton 
1 | Lignite, Texas (Table VI, No. 18)... 4840.40 | 8712.7 
2 | Lignite, Texas (Table VI, No. 38)... 4202.30 7564.1 
3 | Lignite, Italy (Table VI, No. 48) ...00..200.0... . | 5317.20 | 9570.9 
4 | Coal, Texas (Table VI, No. 78) .u.u.....20c0000cceeeeeeeee 6585.20 | 12753.4 
5 | Coal, Cumberland (Table VI, No. 8@)...................--- 7992.00 | 14385.5 
6 | Briquettes, Germany (Table VI, No. 98)................ 4860.80 | 8749.4 
7 | Coal, Wapello Co., Iowa, Table III, No. 7)............ 7259.00 | 13050.0 
8 | Coal, Davis Co., Iowa, (Table III, No. 89).............. 6720.00 | 12097.0 
9 | Coal, Average 16, Lowa (Table IIT)....... 22... 6460.00 | 11626.0 
aBy calculation from elementary percentages. 
bBy physical methods, lowa engineer, Ames, Ia., June, 1902. 
