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Scientific American Supplement, No. 455, September 20, 1884电子书

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作       者:Various

出版时间:2018-02-27

字       数:19.2万

所属分类: 教育 > 外语 > 实用英语

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The characteristics of this singular animal are in some particulars those of the camel, the ox, and the antelope. Its eyes are beautiful, extremely large, and so placed that the animal can see much of what is passing on all sides, and even behind it, so that it is approached with the greatest difficulty. The animal when full grown attains sometimes a height of fifteen to seventeen feet. It feeds on the leaves and twigs of trees principally, its immense length of legs and height at the withers rendering it difficult for the animal to graze on an even surface. It is not easily overtaken except by a swift horse, but when surprised or run down it can defend itself with considerable vigor by kicking, thus, it is said, often tiring out and beating off the lion. It was formerly almost universally believed that the fore legs were longer than the hinder ones, but in fact the hind legs are the longer by about one inch, the error having been caused by the great development and height of the withers, to give a proper base to the long neck and towering head. The color varies a good deal, the head being generally a reddish brown, and the neck, back, and sides marked with tessellated, rust colored spots with narrow white divisions. Many specimens have been brought to this country, the animal being extremely docile in confinement, feeding from the hand, and being very friendly to those who are kind to it.
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THE GIRAFFE.

THE TEMPERATURE OF THE EARTH AS SHOWN BY DEEP MINES.

GALLISIN, AN UNFERMENTABLE SUBSTANCE IN STARCH SUGAR.

THE COMBINING WEIGHTS, VOLUMES, AND SPECIFIC GRAVITIES OF ELEMENTS AND COMPOUNDS.

EMERALD-GREEN: ITS PROPERTIES AND MANUFACTURE.[1]

ANALYSIS OF ZINC ASH AND CALCINED PYRITES BY MEANS OF AMMONIUM CARBONATE.

PETROLEUM AS FUEL IN LOCOMOTIVE ENGINES.[2]

CHARCOAL KILNS.

ENTRANCE, TIDDINGTON HOUSE, OXON.

NEW ARRANGEMENT OF THE BICHROMATE OF POTASH PILE.

THE DISTRIBUTION OF ELECTRICITY BY INDUCTION.

ELECTRICITY APPLIED TO THE STUDY OF SEISMIC MOVEMENTS.

NEW ACCUMULATORS.

INDUSTRIAL MODEL OF THE REYNIER ZINC ACCUMULATOR.

THE HISTORY OF A LIGHTNING FLASH.

RESEARCHES ON MAGNETISM.

IMPROVED GAS LIGHT BUOY.

PROJECT FOR A ROADSTEAD AT HAVRE.

IMPROVED CATCH BASIN.

WATER-POWER WITH HIGH PRESSURES AND WROUGHT-IRON WATER-PIPE.

TEXAS CREEK PIPE AND AQUEDUCT.

PARACHUTE HYDRAULIC MOTOR.

IMPROVED SHAFTING LATHE.

POWER STRAIGHTENING MACHINE.

HYDRAULIC MINING IN CALIFORNIA.

THE TREATMENT OF CHOLERA.

TEMPERATURE, MOISTURE, AND PRESSURE IN THEIR RELATIONS TO HEALTH.

CONSUMPTION SPREAD BY CHICKENS.

NEW METHOD OF REDUCING FEVER.

THE CROWN DIAMONDS OF FRANCE.

A NEW MODE OF TESTING THE ECONOMY OF THE EXPENSES OF MANAGEMENT IN LIFE INSURANCE.

THE SCIENTIFIC AMERICAN SUPPLEMENT.

PATENTS.

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