Peaks, Passes and Glaciers: A Series of Excursions by Members of the Alpine Club (1859)
Ball, John (Ed.) · Longman, Brown, Green, Longmans and Roberts (London) · leaf 473
flow of the glacier. The method was simple: first, by mapping the strie I rendered myself familiar with the glacial phenomena of the valley. I then selected ten+or twelve favourable points, and at each made first an observation with the instrument in the bottom of the valley, and then ascending the… … PASS OF LLANBEBIS. a, the bottom of the Pass; 3, c, tho highest points at which strim were observed running north-west along the sides of the valloy; a, d, the thickness of the ice. If, as I believe, the striations at 6, c were made by a glacier that flowed down the Pass, then the line a, d re-…
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