QUAKERS

I pes, a foot.) All Vertebrate animals with four extrej mities fitted for terrestrial progre ion were formerly so called, the scaly reptiles being distinguished, as oviparous quadrupeds, from the hairy warm-blooded viviparous four-footed mammals. But as there are both reptiles and mammal i a which have only two legs, and as those of both cla es which agree in having four legs differ e entially in the important characters on which cla ific distinctions are now founded, the term quadruped is no longer used in a strict zoological sense as indicative of a particular group of animals. [s. 1020]