120 Scientific Intelligence, 
at other times upon crystalline schists, which however he suggests 
be no other than the carboniferous rocks so highly altered as not 
distinguished from the older crystalline schists. 
In the view which he takes of the relations of the jurassic and 
citic rocks of the Alps, Mr. Favre is so completely at variance with 
of those who have preceded him that it will be necessary to enter 
some details with regard to this so-called anthracitic formation, 1 
age, with a liassic fauna, which has not however afforded a 
ZOic species, , 
Notwithstanding the concurrent evidence of so many 
D 
of the intercalation of the anthracitic beds over a 
observers 
large are 
formation. 
wards brought forward by Favre in 1841, since which time 
discussed by various geologists, although generally with little! 
