Meters, 
Congloramerate. . . . . . . « 14.06 
Shales,light and dark. . . . . © 4.50 
Orleans. \Conglomerate . . . 2. 2 1 6 © 7.40). 2. 2. . « © 42.56 
Shale, dark, bituminous . a a 78,80 
| Conglomerate goin @ oe FBO 
Granite, loose . WHE cela es: Fete Bate ches Gere ce ee ise Bs “Se Ge. oo 2860 
Granite, solid to bottom. . . . 1 1 eo» © ee we wee) 48,90 
253.87 
Here the basal, or Orleans conglomerate, composed largely of 
granite boulders, according to Mr. Spalding, is separated into 3 divi- 
sions by shales, the lower stratum of shale being quite bituminous. 
The interval in this boring from the top of the Rio Bonito beds to 
the loose granite is 128.44 meters, and to the solid graniteis 165.04 
meters. 
Boring n. 3 is 1750 meters south from Poco Fé, and begins about 
30 meters below the level of Poco Izabel. The record there is as 
follows : 
Meters. 
Clay, yellow, with boulders. . . . . « « 7.00 
Shale, bluishe . . . «© 6 © + «© «© « + 3.00 
Iron ore, hematite. . . . . . 6 - e + 0.32 
Shale, blue . 2... 6 © © © © «© « «© 6.75 
Sandstone, greenish and argillaceous. . . . 3.10 
Shale, green, pebbly. . . . . «© « © « 2.10 
Sandstone, coarse, grained . . . . . . « 2.30 FpOeno Baus 62,11 
Shale,greenish. . . 2. ee + we ee 2,80 
Shale, arenaceous . . . . - - - « + + 7.90 
Chert, or flint . 2. 2. 2 - 6 ee e + « 0.40 
Shale, bluish. . . . . © « + + « « « 5.54 
Shale, grayish . . 2 6 6 e+ ee ee © 20.90 
Shale, black, bituminous. . . . - « = . 5.00 
Coal (Treviso? horizon) . . . + + «© + « 0.20 
Shale, black, bituminous. . . »« . . +. . 4.70 
Coal (Treviso horizon). . - « - + « « « 9,30 
Shale, dark. . . © © © © © © © » »& 7,80 
Coal, S. Jeronymo. . «6 « «© © © + « » 5 
Shale, dark, with lime nodules. . . . - + 3.80 Rio Bonito Beds 
Sandstone, coarse-grained. . . . « - + © 1.10 
Shale, dark . - 6 « 0 e© © © © e © 4.90 
(COGDs ca: Fa Cae noe 
Coal, Irapud?.)Shale. . . - «© . + 0,85; 1.21 
l coat Be Faas caictess Tee Gu 0.24) 
