Vogelweide – V-Pug
Vogelweide
WALTHER VON DER, see WALTHER VON DER VOGEL- WEIDE.
Vogue
EUGÈNE MELCHIOR,
Voltaic Battery
a term sometimes applied to a Voltaic pile, but more specifically used for a battery of several voltaic cells; known also as a galvanic battery (from Galvani), though the honor properly belongs to Volta. See ELECTRICITY; VOLTA.
Voltaic Pile
Volta's arrangement for producing a current of electricity, consisting of a pile of alternate disks of two dissimilar metals, as copper and zinc, zinc and silver, zinc and platinum, separated by pieces of flannel or pasteboard moistened with salt water or with water acidulated with sulphuric acid.
Voltameter
in electricity, an instrument for measuring the work, and thus indirectly the strength of a voltaic current. This is done by the amount of electro-chemical decomposition, a certain current reducing a certain amount of hydrogen from water, silver or copper from their salts, etc. This must not be confounded with voltmeter.
Volturno
a river of Italy, rising in the province of Campobasso; flows S. E. to its junction with the Calore, and then W. past Capua into the Medi' terranean, 20 miles S. E. of Gaeta; course, about 100 miles. pace occupied by a
Vortex
ordinarily, a whirlpool.
When any portion of a fluid is set rotat ing round an axis a vortex is produced.
Familiar examples are seen in eddies, whirlpools, waterspouts, whirlwinds, and on a larger scale in cyclones and storms generally.
Vorticella
or BELL-ANIMAL- CULE, a genus of stalked infusoria, having a fixed stem capable of being coiled into a spiral form, and vibratile organs called cilia fringing the bell-shaped disk or head, which are constantly in rapid motion and attract particles of food. The species are very numerous in fresh water, and are generally microscopic. countrymen,
Voyageur
a traveler; specifically applied in Canada to a class of men employed by the fur companies in transporting goods by the rivers and across the land to and from the remote stations of the Northwest. They are nearly all French Canadians or half-breeds.
V-Pug
the Eupithecia coronata, a pug moth. The fore wings are green with numerous black and pale markings, the most conspicuous of which is a Vshaped black mark, whence the name. The caterpillar feeds on the traveler's joy, the agrimony, the golden rod, and the wild angelica.