Xll 



CONTENTS, OR SYSTEMATIC INDEX. 



Class iv. Mammalia 



Composition of Bones 



Law of Correlation 



Genus Microlestes 



Dromatherium 



Amphitherium 



Amphilestes . 



Phase olotherium 



Stereognathus 



Spalacotlierium 



Triconodon 



Plagiaulax 



Coiyphodon 



Pliolophus 



Lophiodon 



Palaeotherium 



Anoplotheriuni 



Dichodon 



Dichobune 



Xipliodon 



Microtlierium 



Hyaenodon 



Ampliicyon 



Gulo 



Didelphis 



Balsenodon 



Ziphius 



Zeuglodon 



Halitherium 



Macrotherium 



Pliopithecus . 



Dryopithecus 



Mesopitliecus 



Dinotlieriiun 



Mastodon 



Elephas 



Hippopotamus 



Rhinoceros 



