Identifier: sciencerecordcom1874beac (find matches)
Title: The Science record; a compendium of scientific progress and discovery
Year: 1872 (1870s)
Authors: Beach, Alfred Ely, 1826-1896
Subjects: Technology Industrial arts
Publisher: New York, Munn
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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et, pro-bably all the Sierra slopes, even to the summits them-selves, were covered with rounded forms on a grand scale.Subsequent action of ice and snow and frost and rivershave destroyed these except in some localities. Watertends to form deep V-shaped canyons, while ice producesbroad valleys with lakes and meadows. A camping partyin the Sierras is made painfully aware of having passedbeyond the limits of ancient glaciers by the sudden andentire disappearance of the meadows, and therefore ofgrazing for horses. I know not how general these distinc-tions may be, but certainly the coast-range of California ischaracterized by rounded summits and ridges, and deep V-shaped canyons, while the high Sierras are characterized,on the contrary, by sharp, comb-like summits and broadvalleys. And this difference, I am convinced, is due, inpart at least, to the action of water on the one hand, and ofice on the other. GEOGRAPHY. 523 ARCTIC EXPLORATIONS—INTERESTING NAR-RATIVE OF THE HALL EXPEDITION.
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CAPTAIN CHARLES F. HALL. A strange, eventful history, more like the fiction ofthe romancer than the recital of plain, unvarnished fact, isthe narrative of the last American arctic expedition underthe command of the lamented Hall. The steamer Polaris, it will be remembered, was fitted 524 SCIENCE RECORD. out for arctic service in the New-York Navy-Yard, duringthe summer of 1871, and under the immediate supervisionof her commander, Captain Charles F. Hall. Leaving theport, she touched at St. Johns, Newfoundland, and in the

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