VITRIOL 



341 



VON SIEBOLD 



Vitriol, (vit'ri-ol). [The French word.]=Sul- 

 phate. Blue V. =Sulphate of copper. White 

 F.=Sulphate of zinc. Green F.=Sulphate 

 of iron. Oil of F.=:Sulphuric acid. 

 Viverra, ( vi-ver'ra ). [The Latin name.]= 

 Civet, genet, coati, &c. v. Viverridse. V. 

 ichneumon = Ichneumon. V. mellivora = 

 Honey ratel. 



Viverridae, (vi-ver'i-de). [Viverra, q.v.; Gk. 

 eidos, form.] A family of carnivorous ani- 

 mals belonging to Felidse. 

 Vivianiaceae, (vi-vi-an-i-a'se-e)=Vivianads: S. 



American herbs belonging to Malvales. 

 Vivianite, (viv'i-a-nit). A mineral of the iron 

 group, with oblique crystallisation, chiefly 

 phosphate of iron. 



Vivipara, (vi-vip'a-ra). De Blainville's term 

 for Mammalia. 



Viviparous, (vi-vip'a-rus). [L. yivus, alive; 

 pario, I bring forth.] Producing offspring 

 alive: the development of the embryo being 

 considerably advanced before detachment. 

 Vizcacha. v. Lagostomus and Lagotis. 

 Vocal chords. Elastic cushions, whose edges 

 form the sides of the glottis, which nearly 

 close the aperture of the windpipe, v. 

 Voice. 



Vochyacese, ( vok-i-a'se-e ). [Vochy, the S. 

 American name.] = Vochyads : shrubs and 

 trees, with large showy flowers, belonging to 

 Sapindales. 



Vogt's classification of animals, according to 

 the structure of the egg, and arrangement of 

 organs. 



Vertebrata, with central yolk. 

 Mammalia. 



Aplacentaria. 

 Placentaria. ' 

 Aves. 



Insessores. 

 Autophagi. 

 Reptilia. 

 Amphibia. 

 Pisces. 



Articulata, with dorsal yolk. 

 Insecta. 

 Myriapoda. 

 Arachuida. 

 Crustacea. 

 Cephalopoda, with cephalic yolk. 



Cephalopoda. 



Mollusca, with organs irregularly disposed. 

 Cephalophora. 

 Acephala. 

 Tunicata. 

 Ctenophora. 

 Bryozoa. 



Vermes, with bilateral organs. 

 Annelida. 

 Rotatoria. 

 Platyelmia. 

 Nematelmia. 



Radiata, with radiate organs. 

 Echinodermata. 

 Siphouophora. 

 Hydromedusse. 

 Polypi. 



Voice, (vois). [Vox, the Latin word.] Modi- 

 fications of sound produced by the larynx: 

 the larger the larynx the deeper the voice, 

 owing to the slower vibrations of the vocal 

 chords, or elastic bands, which nearly close 

 the aperture of the windpipe. 



Volatile, (vol'a-til). [ VoloMis, the Latin 

 word.] Evaporating readily. V. liquid, v. 

 Liquid. V. oils= Essential oils, q.v. 



Volcanic, (vol-kan'ik). [Volcano, q.v.] Re- 

 lating to volcanoes. V. fonnations, v. V. 

 rocks. V. gfZass=Obsidiau, q.v. V. rocks: 

 basalt, greenstone, granite ; produced by 

 action of heat, mostly unstratified and with- 

 out fossils. V. tuff: a compound of sand, 

 cinders, &c., resulting from volcanic action. 



Volcano, (vol-ka'no). [Vulcano, the Italian 

 word.] An opening in 

 the crust of the earth, 

 through which lava, 

 &c., is thrown out; be- 

 comes surrounded by 

 lava, ashes, &c., until aj 

 mountain is gradually 

 formed. 



Voltaic, (vol-ta'ik). [Sig- - f 

 norVolta.] V. arc: the; 

 arc of light between the " 

 two poles of a Voltaic Volcano, 



battery, or of an induction coil. V. battery, a 

 number of Voltaic cells, couples, or elements, 

 connected so as to act together. V. <-urrent= 

 the current of chemical electricity. V. couple: 

 two substances, one usually a metal, having 

 different affinities for the liquid in which 

 they are placed. V. electricity, v. Electricity. 

 V. pile: a number of discs of copper and zinc, 

 piled in uniform pairs between pieces of cloth 

 moistened by diluted acid. 



Volt, (volt). [Signer Volta.] 

 netic units. 



Voltameter, (vol-tam'e-ter). 

 Gk. metron, measure.] An 

 apparatus for measuring 

 the force of a Voltaic cur- 

 rent. Faraday's V.: by 

 which the quantity of 

 water decomposed in a 

 given time is made the 

 measure of intensity. 



Volumetric,(vol-u-met'rik). 

 [Volume ; Gk. metron,mea.- 

 sure.] Relating to mea- 

 surement of volume. V. 

 analysis: a variety of 

 quantitative analysis, in Voltameter. 

 which the quantity of a constituent of a com- 

 pound is estimated by the volume of some 

 solution which must be added to produce 

 certain effects. 



Volute, (vo-laf). [L. volutum, rolled.] A 

 rolling or spiral curve or scroll. 



Vomer, (vo'mer). [L. vomer, ploughshare.] A 

 slender bone forming the centre of the nasal 

 vertebra. 



Vomicine, (vo'mi-sm). [Nux Vomica, q.v.} 

 =Brucine, q.v. 



Von Baer's classification, v. Baer. 



Von Siebold's classification, v. Siebold. 



v. Electro-mag- 

 [Voltaic, q.v.; 



