— 135 — 
on the south-east rise of the strata, where the following succession was 
measured : 
Meters 
1. Black shales. 2. © 2... . . ee 0.61 
2. Coal,streak. «© 2. ww ew kek ek 0.05 
3. Coaly slates. 2. 1 1 kw ee ke | a 
Ae Coa Ba Fe Gp ae Gy ge . w, lae @ DE 
5. Slate, black, with thincoaly layers. . . . 2. . . ww, 7 
6; Shales, darks 2.06 6 ws % oe woe we we ee Rw Se we 0.15 
7. Sandstone, massive in bedof river. . . . . . ., 
The upper portion of n. 4 isa fairly pure for fram 10 to 15. centi- 
meters, and has beenexplored some in an open cutting for local use, 
where it has an anthracitic appearance, since the measures are cut by a 
dike of diabase only a few feet distant. 
Fhe following analysis made under the supervision of Prof. B. EH. 
Hite shows the chemical constitution of the Treviso coal at this 
locality : 
MOiStUPO- sei eh Mee Wee “RE Rp HE 0.46 
Volatile matter . . 2. 2. 1 ew we ew ew ee 25.73 
Fixed CarbOler si ce lar eo Bo Sido ee Ew 41.27 
ASM errotc Sore Gira a, Bl Benson Tes eee Weta Sex sels See: Fe 32.54 
Total, 4 4s 3-6 ow hw Owe Owe 100.00 
Sulphuts.. Soars dep. ahs Gg we At Seer Se 8.90 
Phosphorus . . . 6 «© « - . +... 6 6 0,023 
Be Ties Wie ee eo OR a OOS 10,157 
This shows a fuel quite high in impurities of }oth ash and sulphur 
and hence the coal is of little economic importance. 
In the sections shown from S. Jeronymo; Irapua, and elsewhere in 
Rio Grande do Sul, a slaty coal is visible 8 to 12 meters above the main 
bed of the region, and this is possibly a representative of the Treviso coal 
since it is always of poor quality, and of no economic importance, and 
is, in addition, the highest coal bed of the series. 
It is probably this same coal that has been explored at Capellinha, 
or mina das Flores, 15 kilometers nort-east from the fazenda of Dr. Bar- 
cellos, where the following section was measured at one of the old 
galleries : 
Meters 
1. Maroon colored shales. . . . . 2 © «© © «© © © «1 © 8 «@ 
2. Conglomerate and sandstone. . . 2 «© © © © © © © © © 5 = O14 
