Summary

Portrait of Edward Whymper Edward Whymper Scrambles amongst the Alps — Appendix (1871)

It was a snowy plateau—almost a plain (without any protruding ridges or rocks) —which gave birth to two great glaciers—one (the Stock glacier) descending gently towards the north-east, the second (the Valpelline glacier) falling away rather more rapidly to the south-west. Wretched weather and miserable workmen retarded the work, and only one pit was sunk in the time at my disposal. This was a little more than 22 feet in depth; and, although it threw scarcely any light upon the veined structure, it yielded some information respecting stratification of snow and the formation of glacier-ice.
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Portrait of Edward Whymper Edward Whymper Scrambles amongst the Alps — Appendix (1871)

The lower strata of pure ice were, upon the whole, thicker than those towards the surface. This, doubtless, was a result of vertical pressure. The strata grew under pressure. But why should some grow and others disappear? I presume that the finest ones disappear, and that the stouter ones grow. Can it be shown experimentally that it is possible to liquefy by steady pressure a fine plate of ice placed in the interior of a mass of snow, and at the same time, under the same conditions, to thicken another and stouter plate of ice?
Source: Wikisource

Portrait of Edward Whymper Edward Whymper Scrambles amongst the Alps — Appendix (1871)

I am doubtful, however, whether their opinion was correct, and incline to the idea that the uppermost 11 inches had fallen during the summer of 1866, and that the succeeding 10 inches may have been all that remained of the preceding winter's snow. Whatever surprise may be felt at so small a depth being considered as representing a year's fall, must be modified when it is remembered that the position at which the pit was sunk could scarcely have been more exposed. We had evidence that a mere fraction only of the snow that fell remained in situ—the wind tore it away in sheets and streams.
Source: Wikisource

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