Review of Recent Geological Literature. Ill 
Ueber die geologischen Verhdltnisse des Cambrium voii Tejrovic imd 
Skrej in Bohmen, von Jaroslav J. Jahn, 10 cuts, 150 p. ( Jahrbuch 
derK. K. geolog. Reichsanstalt, 1895. Bd. 45, Hft. 4, Wien, 1896.) 
This work is in many respects complementary to that of Dr. Pompeckj, 
published about a year ago, and reviewed in this journal,* but the 
present work deals chiefly with the stratigraphy of the Bohemian Cam- 
brian rocks, and that mostly at the localities from which Dr. Pompeckj 's 
collections were made. The different variations of the rock-material, at 
the special horizons and localities as well as the various species of 
Cambrian animals is fully set forth in this paper. 
Barrande's Etage B is said to contain three terrains; the lowest consists 
of graphitic clay slates, etc., the second of tufaceous grauwacke associ- 
ated with various porphyries, and the third a conglomerate and sand- 
stone containing a Lower Cambrian fauna. 
Barrande's Etage C is called Middle Cambrian, and contains the Par- 
adoxides fauna. At one locality it shows effusive beds of felsite at two 
horizons, and has conglomerates at the base and summit, the body of 
this stage being the well-known Paradoxides slates. 
The carefully studied sections of the^Cambrian district, described in 
this article, give very exact knowledge of the horizons at which the 
several Primordial species of Barrande are found. The indications for 
depth and habitat of the several species are drawn out at some length, 
and there is a full table of these species showing their vertical range. 
The Paradoxides fauna in Bohemia is not so clearly divisible into 
sub-faunas as is that of Sweden or eastern Canada. Yet there are really 
two groupings of the species, the upper of which is found in the red 
slates of "Pod hruskou" and is marked by the lavigate Agnosti and 
the dwarfed and aberrant types of the genus Paradoxides. P. bohem- 
icus of the Jinsc locality will probably belong to this section of the 
fauna. 
The KammenA hurka locality fossils are of a separate fauna and are 
referred to the Lower Cambrian, and said to be of the Olenellus stage, 
though no spBcies of Olenellus is named as occurring at the Cambrian 
localities in Bohemia described by this author. 
This papsr and Pompeckj's earlier one on the fauna are necessary to 
those who wish to become familiar with the latest observations on the 
Bohemian Cambrian rocks. G. f. m. 
St. John, N. B., Canada. 
Elementarii Geolorjij. By Ralph S. Tabr. 12-mo, pp. 499, 1897. 
(New York, The Macmillan Company, Price $1.40.) In looking at this 
new work, which adds to th(! already large number of elementary text- 
books of geology, the first impression is that which is produced by a book 
excellently published. The publishers have done their share to give it 
a fair and favorable presentation. The paper is smoothly calendered, 
and the 283 illustrations, which are well-chosen half-toned engravings 
from photographs, are well printed. Indeed the book is a pioneer ex- 
*Die Fauua des Carabrium von Tejrovic uiid Skrej in BOhmen. 
