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Document Max. Freq Min. Freq
Pausanias, Description of Greece 6 0 Browse Search
Apollodorus, Library and Epitome (ed. Sir James George Frazer) 4 0 Browse Search
Euripides, Hippolytus (ed. David Kovacs) 4 0 Browse Search
Harper's Encyclopedia of United States History (ed. Benson Lossing) 2 0 Browse Search
Raphael Semmes, Memoirs of Service Afloat During the War Between the States 2 0 Browse Search
Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 1. (ed. Frank Moore) 2 0 Browse Search
Knight's Mechanical Encyclopedia (ed. Knight) 2 0 Browse Search
Comte de Paris, History of the Civil War in America. Vol. 1. (ed. Henry Coppee , LL.D.) 2 0 Browse Search
The Daily Dispatch: November 18, 1861., [Electronic resource] 2 0 Browse Search
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Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for Amazon or search for Amazon in all documents.

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Can′vas-stretch′er. A quadrilateral frame on which canvas is extended for painters' uses. In the one shown, the miter-joints have dowel-pins, and are expanded by the wedges, the pins in the open center of the latter preventing their falling out. Caoutchouc. Commonly called gum-elastic or india-rubber. A substance derived from the sap of various trees, of which the Jatropha elastica, called by the natives hevee, flourishing in the plains of Brazil, toward the lower part of the Amazon River, is the principal source of production. It was first brought to Europe in the early part of the eighteenth century, and fifty years later was mentioned by Dr. Priestly as a substance excellently adapted for removing pencil-marks from paper. Crumb of bread had previously been employed for this purpose. The sap, obtained by tapping the trees, is dried over a fire, which gives it the dark appearance observable in the rubber of commerce. For many years its various adaptabilities seemed