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A Catechism of Familiar Things

Their History, and the Events Which Led to Their Discovery. With a Short Explanation of Some of the Principal Natural Phenomena. For the Use of Schools and Families. Enlarged and Revised Edition.

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Author: Anonymous
Published: 1881
Language: English
Wordcount: 65,103 / 209 pg
Flesch-Kincaid Reading Ease: 53.7
LoC Category: Q
Downloads: 977
Added to site: 2005.09.21
mnybks.net#: 11372
Origin: gutenberg.org
Genre: Science
Excerpt

amber, a yellow transparent substance, remarkable for its electrical power when rubbed: amber is of a resinous nature, and is collected from the sea-shore, or dug from the earth, in many parts of the world. It is employed in the manufacture of beads and other toys, on account of its transparency; is of some use in medicine, and in the making of varnishes.

Transparent, clear, capable of being seen through.

Resinous, containing resin, a gummy vegetable juice.

Name a few substances possessing this remarkable property.

Silks of all kinds; the hair and fur of animals, paper, sulphur, and some other minerals; most of the precious stones; the paste of which false gems are made; and many other substances used by us in the common affairs of life, are susceptible of electrical excitement; among domestic animals the cat furnishes a remarkable instance. When dry and warm, the back of almost any full-grown cat (the darker its color the better) can be excited by rubbing it wit

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