— 105 — 
At another opening in thiscoal 1/2 kilometer distant, N. 60°, W, 
we get the following: 
Melers 
1. Sandstone, white, visible. anniek Saphtter eS leg, ae tee, ee lah cee “dics 3.05 
2. Shale, bituminous. . 2... . ww ee ee ee 0,66 
3. Coal, fair. 2. 2. 2. 1. 1 we 
ee er 0.25 
4. Slate, black, fussil plants 
This coal appears to represent the Barro Branco seam of Minas, 
since above it is only one massive ledge of sandstone, and then come 
the soft shales of the Estrada Nova beds. The lower bench of the coal, 
always present in the Tubardao region, appears to have passed into black 
Slate here and is represented hy n. 4 of the section. In it occur specimens 
of Glossopteris, Gangamopteris, Noeggerathiopsis, and Sigillaria, or 
Lepidophtoios . 
The coal contains considerable sulphur and other impurities, and 
is too thin to be of any commercial value, except for local purposes. 
The following analysis of asample of the coal is reported by Prof, 
B. H. Hite: 
PROXIMATE ANALYSIS 
Moisture. 
‘i * & be eh oe 2.40 
Volatile matter 2. . 6. 6. 6 6 6 © se 8 ee 32,95 
Fixed carbon . . 8 . 15,86 
Ash wo. ‘ . 5 20.79 
100.06 
Sulphur. 2. 2. 6 se 8 8 He fe ee 8.65 
Phosphorus, . . 6 ee ef 8 eh Fe ee 0.02 
ULTIMATE ANALYSIS 
Gavbon «a oe ee Re we a 58.15 
Hydrogen 6 oe ee ee et 4,31 
Oxigen . 2. ee ee ee Hh es 10.21 
Nitrogen. 2. 6 ee 8 ee eh ht 1.14 
Sulphur. 2. 2. 8 © © © 8 he FF hs 5.40 
Rohe a DS e Owl wee ae ee SE Gos 20.79 
100.00 
B, T. U., Calorimeter . 6+ © © © es 8 ee 10808 
B, T. U., Calculated, 2 6 6 8 8 er tes 10628 
5569 o 
