LIST OF PLATES. 



PAGE 



Plate XII. (between p. 130 and p. 131). The Australian Mud- 

 fish (6'<3r«^(?(??<s i^(?s^6ri) ... ... ... Explanation 118 



Plate XIII. (between p. 130 and p. 131). The Mexican Axolotl 

 {Siredon pisci/orjnis) and the European Land-salamander 

 {Salamandra maculata) ... ... ... Explanation 129 



Plate XIV. (between p. 180 and p. 181). Four Catarhines 



(Chimpanzee, Gorilla, Orang, Negro) ... Explanation 181 



Plate XV. (between p. 188 and p. 189). Pedigree of 3Ian 



Explanation 184 



