910 Recent Literature. [September, 
reef-corals, are common in both Devonian and Carboniferous, bi 
other orders of Anthozoa are rare or absent. Crinoids are absent 
in the Silurian of Asturias, but the Devonian furnishes genera 
identical with those of the Rhine, and the Carboniferous is rich 
in species. Echini occur in the Carboniferous, but have not been 
found in the underlying formations. Bryozoa occur in both De 
vonian and Carboniferous, and 112 species of Brachiopoda are 
enumerated by our author in the three formations, by far the 
greater part of them from the Devonian. The Lamellibranchiat 
Asiphonida are better developed than the other divisions of 
bivalves, and the Gasteropoda Siphonostomata are entirely absent 
Cephalopoda, so greatly developed in adjoining countries, play 
an insignificant role in Asturias ; and the crustacea are limited to 
trilobites, one ostracodous carboniferous species exc w 
The sixth chapter treats of the earth-movements, denudation, 
etc., which have modified the palæozoic strata since their frst 
a 
ce. 
This volume, remarkable in itself as a monument of research, 
becomes still more so when the multiplicity of the labors ani- 
comparative youth of the author are considered, T 
4 : 
FRIEDLANDER’S BIBLIOTHECA Historico-NATURALIS ET Mata : 
EMATICA.—This is a bulky strongly-bound octavo volume appt 
natural science has become specialized may be learned by 
works 
is the great disproportion between the number of general pit 
i notes, brochures and memoirs. 
engaged in the same line of study as his pr n 
years of the century, the fit 
The book is illustrated by a portrait of the founder oan 
Julius Friedlander, who traveled in the United States, W whos 
tor’s dissertation was a mathematical thesis, and among Z 
Berlin friends was Alexander Humboldt, He died in on os 
