XX 



LIST OF ILLUSTRATIONS 



1214, 

 1215 

 1216 

 1217 

 1218 

 1211» 

 1220 

 1221 

 1222 

 1223 

 1224 

 1225. 

 1226, 

 1227, 

 1228. 

 1229. 

 1230, 

 1231. 

 1232. 

 1233. 

 1234. 

 1235. 

 1236. 

 1237. 

 1238. 



Development of Graafian foUicle 

 Segmentation of Mammalian oosperm 

 Le])u.s cuniculus, embryonic area 



,, ,, embryos .... 



Formation of foetal membranes oi Mammal 

 Lepus cuniculus, embryo with membranes 

 Erinaceus, formation of amnion and trophoblast 

 Formation of amnion in Maiinnalia 

 Macropus, mammary fcetus .... 

 Hypsiprymnus rufescens, embryo and f(ftal n 

 Phascolarctos cinereus ,, ,, ,, 



Perameles obesula ,, ,, placenta 



Theria and Monotremata, Ijlastula 

 Phascolotherium bucklandi, mandible 

 Plagiaulax becklesi, mandible 

 Diprotodon australis, skeleton 

 Nototherium mitchelli, skull 

 Thylcoles carnifex . 

 Glyptodon clavipes, skeleton 

 Mylodon robustus . 

 Scjualodon, teeth 

 Dinotherium giganteum, skull 

 Tillotherium fodiens, skull . 



embrane 



Diagram illustrating the mutual r 



elat: 



onship of the Chordata 

 ,, ., ,, Phyla o f 



animals 

 1239. Map showing depths of sea between the British Isles and the 



Continent 



Map showing depths of sea between New Zealand and Australia . 

 Diagram illustrating the relations of the Zoo-geographical Regions 



1240 

 1241 



P.\OE 



586 

 588 

 589 

 590 

 591 

 592 

 593 

 594 

 596 

 596 

 596 

 597 

 597 

 601 

 601 

 602 

 603 

 604 

 604 

 605 

 605 

 607 

 609 

 616 



618 



623 



624 

 634 



