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Scientific American Supplement, No. 841, February 13, 1892   By:

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[Illustration]

SCIENTIFIC AMERICAN SUPPLEMENT NO. 841

NEW YORK, FEBRUARY 13, 1892

Scientific American Supplement. Vol. XXXIII, No. 841.

Scientific American established 1845

Scientific American Supplement, $5 a year.

Scientific American and Supplement, $7 a year.

TABLE OF CONTENTS.

I. ANTHROPOLOGY. Investigation of a Mound near Jefferson City, Mo. By A.S. LOGAN. Prehistoric remains from the banks of the Missouri River II. BIOLOGY. New Observations on the Language of Animals. By M. DE LACAZE DUTHIERS. A lengthy examination of some facts in the language of animals, including birds and quadrupeds

III. BOTANY. Electricity in Agriculture. By CLARENCE D. WARNER. The effect of currents of electricity upon the germination of seeds. Interesting experiments detailed, which can be easily repeated

Electricity in Horticulture. The effect of the electric light on vegetation, availability it may possess for the gardener

Pentapterygium Serpens. A Himalayan flowering plant introduced in England about ten years ago. 2 illustrations

The Perforation of Flowers. What insects do to promote the propagation of plants by perforating the flowers in search of honey. 16 illustrations

IV. CHEMISTRY. A New Laboratory Process for Preparing Hydrobromic Acid. By G.S. NEWTH. Simple synthesis of hydrogen and bromium

Boron Salts. Boron sulphides and selenides and silicon selenide

Detection of Peanut Oil in Olive Oil. A practical laboratory test for the above adulteration

Hydroxylamine. Recent preparation of this compound and its properties

New Boron Compounds. Compounds of boron, phosphorus, and iodine recently prepared by M. MOISSAN

Sapotin, a New Glucoside. By GUSTAVE MICHAUD. Preparation of a new glucoside from almonds and other sources

V. CIVIL ENGINEERING. Completion of the Mersey Tunnel Railway. The penetration of the bed of the Mersey River by a tunnel at the rate of 150 feet per week. Details of the work

VI. EDUCATIONAL SCIENCE. Chinese Competitive Examinations. Interesting details of the famous examinations of China. Fatal consequences to overworked competitors

VII. ELECTRICAL ENGINEERING. High Speed Engine and Dynamo. A high speed compound engine, running at 500 revolutions per minute, with direct driven dynamo for electric lighting. 3 illustrations

VIII. MEDICINE. The Treatment of Rattlesnake Bite by Permanganate of Potassium, Based on Nine Successful Cases. By AMOS W. BARBER, M.D. The use of this powerful disinfectant, and the proper treatment and mode of applying it.

IX. METEOROLOGY. Modification of Our Climate. By JOSEPH WALLACE. Climate epochs and the probabilities of the present climatic era. Changes within the records of man

The Eruption of Krakatoa. A graphic description of this catastrophe, involving the lives of 35,000 people

X. MILITARY ENGINEERING. The Military Engineer and His Work. By Col. W.R. KING. A Sibley College lecture, treating of the special problems In fortifications, sieges, and the more pacific work of surveys and explorations

XI. MINERALOGY. Natural Sulphide of Gold. By T.W.T. ATHERTON. A probable new occurrence of gold

XII. NATURAL HISTORY. The Living Jerboa in the Zoological Garden of Berlin. A rare rodent from South Africa, one seldom seen alive in captivity. 5 illustrations

XIII. NAVAL ENGINEERING. Twenty four Knot Steamers. The possibility of fast ships for long voyages. The prospects and difficulties

XIV. RAILROAD ENGINEERING. A Steam Street Railway Motor. A noiseless motor built of steel on trial in Chicago... Continue reading book >>


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