This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...also been described by Salisbury from the vicinity of Melville Bay. Their movement was clearly evinced by their structure and by the debris which they carried.24 Nature of the Surface Snow of the Inland-ice.--The surface snow from the marginal zones of the inland-ice has the granular form ...
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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1922 edition. Excerpt: ...also been described by Salisbury from the vicinity of Melville Bay. Their movement was clearly evinced by their structure and by the debris which they carried.24 Nature of the Surface Snow of the Inland-ice.--The surface snow from the marginal zones of the inland-ice has the granular form characteristic of nev6s, as has been shown with exceptional clearness in elaborate studies by von Drygalski.25 Such grains, grown by accretions from a single crystal nucleus and at the expense of neighboring crystals, must require either fusion from temporary elevation of temperature, or from pressure. The observations of von Drygalski were made on the ice of the marginal tongues and on the blue layers of the inland-ice; but as the samples taken farthest from the margins were found at a height of only 500 meters, the results throw little light upon the conditions of surface snow within the interior, where melting does not take place. In view of Nordenskj old's observations in Spitzbergen26 and recent studies in Antarctica it is unlikely that firn or neVe snow will be found within the interior except at some depths below the surface. Nansen has described the fine "frost snow" which falls almost daily from an air layer near the snow surface, from which its moisture has been derived. Melting does not occur there, as already stated, except, perhaps, for a few days in the height of summer when a thin crust develops upon the surface.27 Peary has referred to the snow at the highest altitudes which he reached in north Greenland as "unchanging and incoherent." This dry hard snow chased by the wind, has the cutting effect of sand in a blast, and thus is offered still another parallel with deserts and their wind blown sand. Each new storm, we...
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Seller's Description:
Good. Ex-library copy with usual markings in a library binding. Cover shows minor wear, pages are lightly tanned. Very Clean Copy-Over 500, 000 Internet Orders Filled.
