124 Scientific Intelligence. 
review of the theories that have been brought forward to account for the 
- oobi flexures or displacements, metamorphism and_ elevations, 
at have taken place in the earth’s crust. These theories, and the objec- 
os to them, appear to be so presented, with a citation of a large 
number of authorities; and the work may be profitably read by all who 
would study this obseure debarininct of geology. e author very 
any does not add to the number of hypotheses, yet briefly draws 
me conclusions from the survey. Upon these conclusions we may re- 
ini} in a future number. 
=, entexr Miinsteri, specie di Pesce i cui resti fossili, trovati nelle Ar- 
é Subapennine del Volter rano dal Dott. G. Amidei, sono descritti ed 
illustrati dal Prof. C. Giuseeppz Meneeuini. 26 pp. 4to, with a plate. 
Pisa, 1864. (Nistri.)—Prof. ——— besides describing a fossil fish 
of the genus Dentex, shows that o bones described by C, di Minster 
as portions of what he calls Gage subtruncatus and C. interruptus, 
long to one and the same species, and that this species is identical with 
his own. He therefore gives the species the name Dentex Mitnsteri. 
12. ; ; 
following are some of his conclusions: that th e geological formations of 
Acadia include rocks of all ages, from the Huronian to the Carboniferous 
1. W. Bailey and ‘the 9 is eed to have been prepared by Prot. 
Mr. Matthew 
lite, nd “a attempt ve imitate meteorites by mea ns of this rock; im- 
of magnesian rocks of the chrysolite kind ‘both in the case of 
sometimes in groups of fscbdles: distri bated eae the orn chry- 
solite. The rock called lherzolite, from the vicinity of Lake Lherz, in 
France, is essentially a compound rg these two minerals, chrysolite and 
