AMERICAN Jo ase gagm 
eaetegses> 
JOURNAL OF SCIENCE AND ARTS. 
_ [SECOND SERIES.] 
* - * & E x % 
Nt ee Ee pisie pe, he ls, gheegey 
sie xIV. —Notice of Baron Wolfcane Sartorius von Walters- 
Capa “hausen’s s work on Mount Etna ; by J. L, Haves. 
oer erest which attached to Etna in ancient ‘nil when 
anid ountains were considered rare and accidental phenom- 
ena, and nearly all that was known of volcanic agency was de- 
rived from an observation of this remarkable mountain, has been 
* much enlarged — the sphere of igneous action, and have shé 
7 
that those mysterious phenomena which weregapparent exceptions 
~ and magnitude of volcanic agency are enlarged, the more inter- 
seer is the theatre where - its operations are best displayed. 
he voleanio is ‘the point of departure to the geologist in his 
sneha of. the ‘most ancient | revolutions of the globe. It 
Sp ssi in his own times the phenomena of the disturbance and 
_ elevation of mighty masses of the earth’s crust. It spreads be- 
fore his eyes beds of crystalline rock, analogous to those formed 
in ancient periods. It exhibits a power still at work, which is 
inherent to the nature of the earth, and must have been active 
- daring its earliest epochs. — But above all other volcanoes, and 
 wemay say above any other known point on the earth’s surface, 
: Bitlis fall of instruction to: the oo as well as delizht to 
a oe Vol. I, No. 5.—Sept., 21 : 
in no respect diminished by modern discoveries, which have ‘so 
