









De oe 
AMERICAN NATURALIST. 
= Vol. II.— AUGUST, 1868.—No. 6. 
COADORMVOD I~ 
TRACES OF ANCIENT GLACIERS IN THE WHITE 
MOUNTAINS OF NEW HAMPSHIRE. 
BY GEORGE L. VOSE. 

: _ Prosasty few of the tourists who ride up the valley of the 
_ “*tmner period a solid river of ice filled that valley, for hun- 
dreds of feet in depth, and many miles in length, moving 
_ With a slow but irresistible march downwards, and that this 
7 huge glacier was continually supplied with fresh material at 
a its upper end, from the vast snow-fields beneath which the 
Mb ite Mountains were perpetually buried. Yet there is 
_-*vidence upon the ground that such was the case. All along 
3 the route the rocks are carved with hieroglyphics, more 
"cient by far than those of Egypt and the Nile, which, by | 
Ee of the key obtained in the Alps, we are enabled to 
In the mountains of Switzerland and of Italy, immense 
bodies of snow accumulate in the more elevated regions, 
Where it is so cold that melting to any considerable extent is 
“Possible, eyen in the summer. This snow is by a very 
“dual process converted into ice, immense bodies of which 
i te higher Alpine valleys, and, urged by the pressure of 
ee eee 
shit ing to Act ngre ar 1868, by the PEABODY ACADEMY OF 
ade the Clerk’s Office ‘tte District prt of the District of eats 
h NATURALIST, VOL. IL 
