Not go straight down; one can seldom see
more than twenty to forty feet down them; consequently men
who have disappeared in them have been sought for,
in the hope that they had stopped within helping distance,
whereas their case, in most instances, had really been
hopeless from the beginning.
In 1864 a party of tourists was descending Mont Blanc,
and while picking their way over one of the mighty glaciers
of that lofty region, roped together, as was proper,
a young porter disengaged himself from the line and
started across an ice-bridge which spanned a crevice.
It broke under him with a crash, and he disappeared.
The others could not see how deep he had gone, so it might
be worthwhile to try and rescue him. A brave young guide
named Michel Payot volunteered.
Two ropes were made fast to his leather belt and he bore
the end of a third one in his hand to tie to the victim
in case he found him. He was lowered into the crevice,
he descended deeper and deeper between the clear blue
walls of solid ice, he approached a bend in the crack
and disappeared under it. Down, and still down, he went,
into this profound grave; when he had reached a depth
of eighty feet he passed under another bend in the crack,
and thence descended eighty feet lower, as between
perpendicular precipices. Arrived at this stage of one
hundred and sixty feet below the surface of the glacier,
he peered through the twilight dimness and perceived
that the chasm took another turn and stretched away at
a steep slant to unknown deeps, for its course was lost
in darkness. What a place that was to be in - especially
if that leather belt should break! The compression
of the belt threatened to suffocate the intrepid fellow;
he called to his friends to draw him up, but could not make
them hear. They still lowered him, deeper and deeper.
Then he jerked his third cord as vigorously as he could;
his friends understood, and dragged him out of those icy jaws
of death.
Then they attached a bottle to a cord and sent it down
two hundred feet, but it found no bottom. It came up
covered with congelations - evidence enough that even if
the poor porter reached the bottom with unbroken bones,
a swift death from cold was sure, anyway.
A glacier is a stupendous, ever-progressing, resistless plow.
It pushes ahead of its masses of boulders which are
packed together, and they stretch across the gorge,
right in front of it, like a long grave or a long,
sharp roof. This is called a moraine. It also shoves
out a moraine along each side of its course.
Imposing as the modern glaciers are, they are not so
huge as were some that once existed. For instance,
Mr. Whymper says:
"At some very remote period the Valley of Aosta was occupied
by a vast glacier, which flowed down its entire length from
Mont Blanc to the plain of Piedmont, remained stationary,
or nearly so, at its mouth for many centuries, and deposited
there enormous masses of debris. The length of this
glacier exceeded EIGHTY MILES, and it drained a basin
twenty-five to thirty-five miles across, bounded by the
highest mountains in the Alps. The great peaks rose
several thousand feet above the glaciers, and then, as now,
shattered by sun and frost, poured down their showers of
rocks and stones, in witness of which there are the immense
piles of angular fragments that constitute the moraines of Ivrea.
"The moraines around Ivrea are of extraordinary dimensions.
That which was on the left bank of the glacier is
about THIRTEEN MILES long, and in some places rises
to a height of TWO THOUSAND ONE HUNDRED AND THIRTY FEET
above the floor of the valley! The terminal moraines
(those which are pushed in front of the glaciers)
cover something like twenty square miles of country.
At the mouth of the Valley of Aosta, the thickness of
the glacier must have been at least TWO THOUSAND feet,
and its width, at that part, FIVE MILES AND A QUARTER."
It is not easy to get at a comprehension of a mass of ice
like that. If one could cleave off the butt end of such
a glacier - an oblong block two or three miles wide
by five and a quarter long and two thousand feet thick
- he could completely hide the city of New York under it,
and Trinity steeple would only stick up into it relatively
as far as a shingle-nail would stick up into the bottom
of a Saratoga trunk.
"The boulders from Mont Blanc, upon the plain below Ivrea,
assure us that the glacier which transported them existed
for a prodigious length of time. Their present distance from
the cliffs from which they were derived is about 420,000 feet,
and if we assume that they traveled at the rate of 400 feet
per annum, their journey must have occupied them no less
than 1,055 years! In all probability they did not travel so
fast."
Glaciers are sometimes hurried out of their characteristic
snail-pace. A marvelous spectacle is presented then.
Mr. Whymper refers to a case which occurred in Iceland
in 1721:
"It seems that in the neighborhood of the mountain Kotlugja,
large bodies of water formed underneath, or within
the glaciers (either on account of the interior heat of
the earth, or from other causes), and at length acquired
irresistible power, tore the glaciers from their mooring on
the land, and swept them over every obstacle into the sea.
Prodigious masses of ice were thus borne for a distance
of about ten miles over land in the space of a few hours;
and their bulk was so enormous that they covered the sea
for seven miles from the shore, and remained aground
in six hundred feet of water!
