— 113 — 
station on the Sorocabana Railway and was also dug through there in 
the shaft for water at adepth of 10 to 12 meters. 
South-westward from Cresciuma in Santa Catharina, as already 
stated, the general dipof the measures in that direction, carries the 
coal beds below water level along the coastal region, and the higher 
rocks of the Passa Dois and §. Bento series come down and make the 
surface outcrops from the region of Ararangua on into the state of Rio 
Grande do Sul, so that no more coal beds are visible southward of Cres- 
ciuma until Porto Alegre is passed, and the region of S. Jeronymo is 
reached, 
Whether or not the Rio Bonito beds with their coals shales, and 
gray sandstones, pass under this overlying mantle of higher rocks, 
nothing but the drill can determine. Itis possible that the Sao Bento 
series has transgressed eastward beyond the range of the Rio Bonito 
beds since where the granite again comes out of the sea, north from 
Porto-Alegre, after disappearing below the same north-east from Ara- 
rangua, no outcrops of coal have been reported between it and the Sao 
Bento series, 
But however this may he, the coal beds again make their appe- 
arance about 50 kilometers south-west from Porto-Alegre, in the region 
of S. Jeronymo, and one bed has long been mined on Arroio dos Ratos, a 
tributary of Rio Jacuhy where sections from borings have already been 
given. 
The stratigraphical position of this S. Jeronymo coal, as well as its 
individual structure corresponds so closely to that of the Barro Branco 
ped of Santa Catharina, that although its identity therewith cannot be 
proven from continuous tracing, yet it is most probably the same 
bed. 
In Poco Fé shaft, 90 meters in depth, at the mines operated on 
Arroio dos Ralos, near S. Jeronymo, the coal shows the following 
structure : 
Meters. 
1. Black slate and bony coal with fossil plants. . . . . .... 
2, Coal, fairly good . . ee ee eee ee ee we 0,86 
3. Clay, light gray. . - 0.10 
4, Slate and coal in alternate thin inyars 3 i 8 ueriieetens 2.68 
each. «. . - a er ee ee oe we ee 0,81 
5. Coal, some slaty ieyéte Be gs Tee oe UE wera: Jpnlas Goce NOs 
5569 45 
