52. 



VERMES, (Lat. vermis, worm.) The worms or lowest class of articulates. 



VERTEBRATES, Lat. vertehm, joint, vertebra.) The first or highest branch of aoimals, in- 

 cluding those having an internal skeleton and back bone. 



VERTICAL, (Lat. vertex, top.> Upright, plumb. 



VESSEL, (Lat. rwrpffiMiH, diminutive of vas, vessel.) .4ny. tube or canal in which blood and 

 other liquids are contained. 



W 



WHERRY-SHAPED, long and narrow, and tapering at both ends like a wheiT>'. 



WINGLESS, having no wings. 



WORM.S, the third or lowest class of articulates, called vermes, including low and degraded 

 forms, with their parts or oi-gans often but slightly differentiated. 



