LIST OF ILLUSTRATIONS xix 



FIG. l'\f,K 



1119. Macropus major, teeth .... 531 



1120. Sarcophilus ursinus, front view of skull 531 



1121. Didelphys marsupialis, teeth 531 



1122. Orycteropus, section of lower jaw and teeth 532 



1123. Sus scrofa, teeth . 533 



1124. Equus caballus, skull and teeth . 534 



1125. Elephas africanus, molar teeth . . 535 



1126. Bakenoptera rostrata, lower jaw of foetus, with teeth . . 535 



1127. ,, section of upper jaw, with baleen . . . 536 



1128. Lower carnassial teeth of Carnivora 537 



1129. Different forms of stomach in Mammalia 539 



1130. Stomach of Ruminant 540 



1131. ,, Porpoise .... 541 



1132. Liver of Mammal, diagrammatic 541 



1133. Canis familiaris, brain 545 



1134. Echidna aculeata, sagittal section of brain 546 



1135. Petrogale penicillata 546 



1136. Ornithorhynchus anatinus, brain 547 



1137- Echidna aculeata, brain 547 



1138. Macropus major ,, . 547 



1139. Cogia greyi ,, 548 



1140. Homo sapiens, sagittal section of nasal and buccal cavities . . 548 



1141. ,, ,, ear 549 



1142. Female organs of Marsupials 551 



1143. Uteri of Eutheria . . . 553 



1144. Homo, sagittal? section of ovary 554 



1145. Development of Graafian follicle 554 



1146. Segmentation of Mammalian oosperm 555 



1147. Lepus cuniculus, embryonic area 556 



1148. ,, . ,, embryos ... .... 557 



1149. Formation of foetal membranes of Mammal 558 



1150. Lepus cuniculus, embryo with membranes 559 



1151. Erinaceus, formation of amnioii and trophoblast .... 560 



1152. Formation of amnioii in Mammalia 560 



1153. Macropus, mammary foetus 562 



1154. Hypsiprymnus rufescens, embryo and foetal membrane . . . 563 



1155. Phascolarctos cinereus ,, ,, ,, ,, . . . 563 



1156. Perameles obesula ,, ,, placenta .... 563 



1157. Theria and Monotremata, blastula 564 



1158. Phascolotherium bucklaiidi, mandible 566 



1159. Plagiaulax becklesi, mandible 567 



1160. Diprotodon australis, skeleton . 568 



1161. Nototherium mitchelli, skull 569 



1162. Thylacoles carnifex . . 569 



1163. Glyptodon clavipes, skeleton 570 



1164. Mylodon robustus . . 571 



1165. Squalodon, teeth 571 



1166. Dinotherium giganteum, skull . 573 



