Reviezu of Recent Geological Literature. . 55 
worayz (?) fragosa, and Walcott subsequently identified 
Goniatites (Glyphioceras) kingi, which White described from 
the Coal Measures. Meek was in doubt whether this black 
shale belonged to the Devonian or Carboniferous, but leant 
toward the former conclusion. Walcott also cites it as Upper 
Devonian." (Girty.) 
These shales are overlain by a thick series of sandstones, 
clays, etc., which have been studied in detail by Mr. J. A. Taff 
of the U. S. Geological Survey. Although I obtained some rec- 
onnoissance notes on the series, they will not be published, be- 
cause of Mr. Tafif's more thorough work. 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
A Paleozoic Terrane beneath the Cambrian. By Geo. F. Mat- 
thew. (Annals N. Y. Acad. Sci., Vol. XII, No. 2, pp. 41-56.) 
The author claims to have found beneath the beds containing Para- 
doxides and Protolenus (therefore below the Cambrian) a peculiar 
group of organisms which are suf^ciently different in facies from the 
oldest Cambrian fauna to be considered as characteristic of an underly- 
ing and dififerent system. 
Sections of the terrane are given in which the discordance between 
it and the overlying Cambrian is shown. Two of these sections are in 
New Brunswick and two in Newfoundland. 
The discordance in New Brunswick is shown by the complete ero- 
sion of the underlying terrane in some of the valleys where the Cam- 
brian sediments occur, while in others the underlying terrane (Etche- 
minian) is 1,000 to 1,200 feet thick. 
Similar conditions prevailed in Newfoundland, though there the 
thickness of the Etcheminian has not been ascertained. At Manuel 
brook, on Conception bay, the Etcheminian terrane is wanting and 
the Cambrian sediment, with Helmia (H. broggeri) and Protolenus at 
the base, rest directly upon Huronian rocks (Intermediate system of A. 
Murray). 
The condition of the sediments of the Etcheminian terrane, both in 
New Brunswick and in Newfoundland, indicates that there was only a 
slight induration of the clays and sands before the Cambrian time, 
though the calcareous beds had been quite consolidated. Hence ero- 
sion of the lower terrane was rapid in Cambrian time, and the lime- 
stone beds of the lower terrane furnished boulders to the conglomer- 
ates of the Cambrian. 
