LIST OF ILLUSTEATIONS. 



FIG. PAGR 



1. Aged male gorilla ... ... ... ... ... 14 



2. Ear of a male adult gorilla ... ... ... 17 



3. The young male gorilla, from the specimen in the Berlin 



Aquarium of 1876-77 ... ... ... ... 22 



4. The same animal at a still earlier age ... ... 23 



5. Ear of chimpanzee ... ... ... ... 31 



6. Young chimpanzee ... ... ... ... 33 



7. Head and shoulders of an aged male orang-utan ... 88 



8. Ear of the orang-utan ... ... ... ... 39 



9. Adult male orang-utan ... ... ... ... 40 



10. Head of the white-handed gibbon ... ... 47 



11. Ear of the white-handed gibhon ... ... ... 48 



12. liett handi o{ Sylobates albimanus ... ... 49 



13. Left foot of the same animal ... ... ... 50 



14. A wauwau in the left foreground {Syldbatet agilis) ; in 



the background to the right, two slender apes {Semno- 



pithemts entellus^ ... ... ... ... 51 



15. Skull of an aged male gorilla in profile ... ... 56 



16. Front view of the skull of an aged male gorilla ... 57 



17. Skeleton of an aged male gorilla ... ... 65 



18. Skull of an aged male chimpanzee ... ... ... 69 



19. Skull of a very young female chimpanzee ... 73 



20. Skeleton of the forearm and hand of the Central African 



bam-chimpanzee ... ... ... ... 74 



21. Skeleton of foot of the Central African bam-chimpanzee 76 



22. Skull of middle-aged female orang ... ... ... 77 



23. Skeleton of young orang-utan ... ... . ... 79 



24. The Zulu king, Ketchwayo, in fighting array, with two 



of his men ... ... ... ... ... 85 



