326 Scientific Intelligence. 
Dawson, of Montreal, who kindly furnishes oe publication, a 
following notice regarding their organic contel 
ote on Limestone or: i“ Gneiss Firsnath tion of B alee 
by J. W. Dawson, LL.D., F.R.S.—The specimens submitted to 
a Mr. R. Rathbun, from he: collection of Mr. Derby, are as 
ollows 
No. 1. Small specimen, which has been etched with acid, and is 
stated to be from Sta. Anna de Pirapitinga. This specimen con- 
sists of dolomite and calcite, white and crystalline, with grains of 
olive-colored serpentine. + shows some obscure forms which 
may be organic; but nothing which can be affirm ed to be 
Eozoon. The specimen is, however, too small and imperfect to 
afford any definite information as to its nature and fossil contents. 
No. 2. This is a limestone apparently similar to the last, and 
presumably from the same formation. It is said to be from the 
Serra da Carauna, Province of Alagéas. As there were several 
small fragments of this limestone, it was soretills etched with 
dilute nitric acid. n examination it showed in a few spots 
groups of canals similar to those of Hozoon Vanadense, filled 
with dolomite. These probably represent fragments of Hozoon. 
ew 
stone is of Laurentian age, and are composed of a of 
and mn hy Eugene * Sur = Ph. D., State Geologist. 140 Pr 
. a - 
the Warrior Coal-field Basin. ise Warrio  Oonkacld Basin is 3 
southwestern portion of the Cumberland Table-land, so conspicu- 
ous a feature in the eastern half of Tennessee. In this basin 
Jefferson County, along a ridge in Jones’ Valley, dividing it longi- , 
tudinally, there occurs one of the great faults of the Appalachi- 
ans, so well marked at the east foot of the Cumberland Table- 
land in Tennessee. The strata of the Upper Silurian, Devonian 
and Sub-carboniferous, are brought up by it to a level with a 
peste of the Quebec group, and, besides, there is an over 
e last-mentioned formation overlyin ng, with conformable 
+a dip, all the other formations, with the Sub-carboniferous beds 
