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. Sierra Club bulletin . level of 6,000 feet, almost the whole of this is in theform of snow. A system of glaciers is thus formed onMt. Rainier, which has a common and continuous nevemass around the crater extending down the slopes for adistance of about a mile. Below this the neve massesbecome separated by thin rocky spurs, and finally con-solidate into a very perfect series of eleven radiatingice-streams, having a striking resemblance on a map tothe rays of a starfish. The circle which includes the endsof these glaciers at the present time is about ten milesin diameter. During the summer of
. Sierra Club bulletin . level of 6,000 feet, almost the whole of this is in theform of snow. A system of glaciers is thus formed onMt. Rainier, which has a common and continuous nevemass around the crater extending down the slopes for adistance of about a mile. Below this the neve massesbecome separated by thin rocky spurs, and finally con-solidate into a very perfect series of eleven radiatingice-streams, having a striking resemblance on a map tothe rays of a starfish. The circle which includes the endsof these glaciers at the present time is about ten milesin diameter. During the summer of 1905, the writer, as a memberof the Sierra Clubs Outing to Paradise Park on thesouth slopes of this mountain, had the opportunity ofmaking a few measurements of the motion of the Nis- * This article appeared in Zeitschrift fur Gletscherkunde, I. Band, 1906,edited by Professor Dr. Ed. Bruckner and published by Gebruder Boru-traeger, Berlin, S. W. 11 Dessauer Strasse, 29.—Editor. SIERRA CLUB BULLETIN. VOL. VI. PLATE XXV. HEAD OF NISQUALLY GLACIER.(showing THE FIRST 8,000 FEET of vertical descent.) From artotype ifl Nature Magazine. The Motion of the Nisqually Glacier. 109 qually Glacier during the month of July. The positionof the end of the glacier was determined, and other ofits characteristics noted, in the hope that future observersmay be able to determine the changes that take place astime goes on. The Nisqually Glacier takes its rise on the southernrim of the crater, and for the first three miles of its coursehas a direct southerly trend. The eastern side of itstrough is formed by a high conspicuous mass of rockknown as Gibraltar, and the western side by a relativelylow rocky spur separating it from the next large glacierin that direction, the Kautz. Within the first three milesthe main neve stream makes a total descent of about 8,000feet, and the surface is broken by enormous ice-falls andfaults. The average slope in this part is therefore aboutthirty degrees, and the av
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