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Knight's Mechanical Encyclopedia (ed. Knight), J. (search)
. As an illustration, see Plate V. Vol. 2 of Wilkinson. The jars of the accompanying cut have lids or stoppers, which are luted or rendered air-tight by liquid clay, pitch, gypsum, or mortar. Some of the jars had flat bottoms a, and were set upon the cellar or store-room floor; and others, being pointed, were set in a stone ring, like the amphorae b b and ring-base c. Late excavations on the site of Troy have exhumed ranks of enormous jars. See Fruitjar. Egyptian vases and jars. Jas′per. 1. A silicious mineral of several varieties. 2. Marble of a greenish color, with small red spots. There is an antique jasper with small spots of black and white. 3. A kind of earthenware prepared from pounded spar. Jaunt′ing-car. An Irish vehicle having two seats, back to back, over the wheels, a well in the middle, and a seat for the driver in front. Jave′lin. A hurling-spear, about 5 1/2 feet long; it has a wooden shaft and an iron head. It is yet used in Europe <