Page:Canadian Alpine Journal I, 1.djvu/192

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Glossary
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so called from their resemblance to a flock of sheep lying down.

Rock-Fall, Rock-Slide—An accumulation of broken rock fallen from the cliffs above, through disintegration of their masses; often of considerable extent.
Rucksack—A bag, especially adapted to the back, for carrying the impedimenta of a mountain climber.
Schrund—A crack or crevasse in the ice of a glacier.
Scree—Loose, broken shale at the foot of a cliff; slopes of debris fallen from above through disintegration.
Séracs—Fantastic pillars of ice formed on a glacier by the intersection of longitudinal and transverse crevasses where the grade of its rock bed is broken by ledges or steps.
Snow-Mushrooms—Accumulation of snow in the woods on trees, stumps, etc., resembling giant fungi of the species named. They are seen of great size and variety along the Canadian Pacific railway through the Selkirks.
Snout—The most advanced part of a dry glacier; corresponds to "forefoot."
Striae, Striation—Grooves, or scratches cut in rocks or boulder clay by the action of ice moving down an incline.
Summit—The highest point of a mountain or peak. The lowest part of a mountain pass. The highest crest of a ridge.
Talus—The mass of rock fragments lying at the base of a mountain cliff, formed by the accumulation