Stump electronic books

I have also given,
from various sources, accounts of similar caves in different parts of
the world.
A pamphlet on _Glacieres Naturelles_ by M. Thury, of Geneva, of the
existence of which I was not aware when I commenced my explorations, has
been of great service to me. M. Thury had only visited three glacieres
when he published his pamphlet in 1861, but the observations he records
are very valuable. He had attempted to visit a fourth, when,
unfortunately, the want of a ladder of sufficient length stopped him.
I was allowed to read Papers before the British Association at Bath
(1864), in the Chemical Section, on the prismatic formation of the ice
in these caves, and in the Geological Section, on their general
character and the possible causes of their existence.
It is necessary to say, with regard to the sections given in this book,
that, while the proportions of the masses of ice are in accordance with
measurements taken on the spot, the interior height of many of the
caves, and the curves of the roof and sides, are put in with a free
hand, some of them from memory.


Pages:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25