174 Sioux City Academy of Science and Letters. 
V. 
aULTIMATE ANALYSES OF LIGNITES—AIR-DRIED BASIS. 
PERCENTAGES 
SAMPLE AND 
LOCALITY Moist- Hydro-| Nitro-} Sul- 
ure Carbon gen gen phur 
Oxygen} Ash 
1 | Lumps from shaft, 
Sec. 22, 29N., 7 E., 
Dakota county, Neb. | 6.47 | 58.90) 2.70 | 1.48 | 6.86 | 10.41) 19.18 
Lumps from shaft, 
bo 
same as above.............. 6.50 | 60.54) 2.64 | 1.26 | 1.08 | 13.98] 14.00 
3 | Lignitie coal, Rock 
Springs, Wyo............. 4.20 | 74.05) 3.56 | 0.87 | 0.59 | 15.17) 1.56 
a. Analyses by the writer. 
VI. 
COMPARATIVE ULTIMATE ANALYSES OF OTHER LIGNITES 
AND COALS, COMPILED FROM VARIOUS SOURCES. 
PERCENTAGES 
LOCALITY AND 
auth CHARACTER Moi Hyd Rye || esihaets 
ost- | Carpon| DY ETO hur |geRand| Ash 
ure gen pour |Oxygen 
1 | Texas, Bowie county, 
freshly mined lignite,| 10.67) 59.84) 3.10 j............ 1.00 | 26.97) 9.10 
2 | Texas, Robertson 
county, freshly mined 
Iba) ce uaa Wu eN ee 16.40} 54.46) 4.41 Joo... 0.96 | 16.07] 7.70 
3 | Texas, Medina county, 
freshly mined lignite, | 13.25] 52.85) 2.25 J............ 1.26 | 21.99) 8.40 
4 | Italy, air-dried lignite,| 6.72] 59.98] 4.75 |............ 0.94 | 29.42) 5.85 
5 | Saxony, water free 
PSIG e) se Aa 31.66) 61.13) 5.09 J...) 31.95} 1.83 
6 | Austria, water free 
Tlie sy ea FD 58.29] 4.68 |............ 0.71 | 18.42] 5.30 
7 | Texas, Kansas & Texas 
Coal Co., water free 
CORTE AE SAN Se ENS) MTA ee: Tees OW) BoP) less ae 1.44 | 16.04} 4.57 
8 | Cumberland semi-bi- 
tuminous coal ..............]............) 80.55) 4.50 fo... 1.08 2.70) 8.25 
9 | Cologne briquettes........ 17.85) 53.50} 3.90 J............ 0.52 | 20.09) 4.66 
