POPULAR SCIENCE REVIEW. 
AMONG THE VOLCANOS AND GLACIERS OF 
AUVERGNE. 
Br the Bey. W. S. SYMOXDS, of Pexdock. 
[PLATE L] 
I N Central France, as is well known, some very interesting- 
volcanic phenomena are displayed in the country of the 
Auvergne and Ardeche. These volcanic phenomena must once 
have exhibited igneous activity upon the very grandest scale, 
and I have little doubt the igneous forces have been renewed 
from time to time from the eocene epoch of Sir Charles Lyell 
down to a comparatively modern period. Having visited this 
country now on three separate tours, in company with my friend 
Sir William Guise, and accompanied on the last occasion by 
Sir David Wedderburn and Mr. Lucy, members of the Cotswold 
Club, I would call the attention of our brother geologists, 
through the pages of the “ Popular Science Review,” to certain 
phenomena we thought worthy of stricter attention than it was 
in our power to give, and at the same time I will endeavour to 
give some information as to the best way of seeing, in succession, 
the grand displays of geological phenomena presented to our view. 
In the regions of the Mont Dore and the Cantal we find the 
relics of vast insulated volcanic mountains, like Mount Etna, 
which have been dormant for ages, and which everywhere ex- 
hibit proofs of the enormous denudation they have undergone 
since their lava streams flowed from their craters, or the lighter 
materials, such as scoriae, pumice, tuffs, and volcanic ashes 
enveloped their cones. Atmospheric agencies, snows and frosts, 
streams and rivulets, and, in later times, the glacier, have 
utterly obliterated the volcanic cones, and these old miocene 
volcanos are laid bare even to their most inmost recesses. 
NEW SEKIES, VOL. I. — NO. I. B 
