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Scientific American Supplement No. 819, September 12, 1891   By:

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SCIENTIFIC AMERICAN SUPPLEMENT NO. 819

NEW YORK, SEPTEMBER 12, 1891.

Scientific American Supplement. Vol. XXXII, No. 819.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

TABLE OF CONTENTS.

I. ASTRONOMY. The Story of the Universe. By Dr. WILLIAM HUGGINS. A valuable account of modern views of the formation of the universe, and of modern methods of studying the problem. 1 illustration.

II. ELECTRICITY. The Production of Hydrogen and Oxygen through the Electrolysis of Water. A valuable paper on the electrolysis of water on a large scale, with apparatus employed therefor. 4 illustrations.

III. MECHANICAL ENGINEERING. An English Steam Fire Engine. A light fire engine built for East Indian service. 1 illustration.

IV. MEDICINE AND HYGIENE. A Case of Drowning, with Resuscitation. By F.A. BURRALL, M.D. A full account of a remarkable case of resuscitation from drowning, with full details of treatment.

V. METALLURGY. How Gas Cylinders are Made. The manufacture of cylinders for highly compressed gases, a comparatively new and growing industry. 6 illustrations.

Refining Silver Bullion. The Gutzkow process in refining silver bullion with sulphuric acid. 1 illustration.

The Treatment of Refractory Ores. A new process for the extraction of metal from refractory ore. 1 illustration.

Weldless Steel Chains. An exhaustive examination of this curious process, and very full illustrations. 43 illustrations.

VI. METEOROLOGY. Climatic Changes in the Southern Hemisphere. By C.A.M. TABER. Causes of the climatic changes the southern hemisphere has undergone.

VII. MILITARY TACTICS. The System of Military Dove Cotes in Europe. Continuation of this paper, treating of the pigeon service in France, Germany, and Italy.

VIII. NAVAL ENGINEERING. The Isle of Man Twin Screw Steamer Tynwald. A high speed steamer, with a steady sea going speed of between 18 and 19 knots. 2 illustrations.

IX. TECHNOLOGY. Ammonia. The manufacture of ammoniacal gas for technical uses. Full details of its production.

Musical Instruments. Their construction and capabilities. By A.J. HIPKINS. Second installment of this highly interesting series of lectures treating of different kinds of instruments.

Note on Refrigerating Apparatus.

Sheet Glass from Molten Metal. The method of making sheets of glass from the molten material and manufacture of metal plates by the same method.

X. VETERINARY SCIENCE. Historical Development of the Horseshoe. By District Veterinarian ZIPPELIUS. Very curious investigation of the development of the horseshoe. 22 illustrations.

THE PRODUCTION OF HYDROGEN AND OXYGEN THROUGH THE ELECTROLYSIS OF WATER.

All attempts to prepare gaseous fluids industrially were premature as long as there were no means of carrying them under a sufficiently diminished volume. For a few years past, the trade has been delivering steel cylinders that permit of storing, without the least danger, a gas under a pressure of from 120 to 200 atmospheres. The problem of delivery without pipe laying having been sufficiently solved, that of the industrial production of gases could be confronted in its turn. Liquefied sulphurous acid, chloride of methyl, and carbonic acid have been successively delivered, to commerce. The carbonic acid is now being used right along in laboratories for the production of an intense coldness, through its expansion. Oxygen and nitrogen, prepared by chemical processes, soon followed, and now the industrial electrolysis of water is about to permit of the delivery, in the same manner, of very pure oxygen and hydrogen at a price within one's reach... Continue reading book >>


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