Keefer, Thomas, C., 1821-1915, American Society of Civil Engineers · [S.l.] : American Society of Civil Engineers · leaf 26
yclone more dangerous than either. Theysometimes bring down a quarter of a million cubic yards, and are gov-erned by the moist or dry condition of the snow, by the varying slopesof the mountains, the presence or absence of trees, and of slopingcrests many thousand feet above grade in the region of… … «*•*• pq /> „,;,,, THE CANADIAN PACIFIC RAILWAY. 73 feet above the level of the track, and pulls out over the sloping sur-face of a glacier, or of old packed snow of the previous winter, un-til it reaches the steep grade (in some cases at an angle of 70 degrees)and then there is a roar, a crash,…
Canadian Pacific Limited · Railroad engineering
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