LIST OF ILLUSTEATIONS. 



FIG. PAGE 



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



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



3. The young male gorilla, from the specimea 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 ... 38 



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 gibbon ... ... ... 48 



12. Jjeil hand oi Hylobates alhimanus ... ... 49 



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



14. A wauwau in the left foregroimd (Hijlobates agilt's) ; in 



the background to the right, two slender apes (Scmno- 



piihecus 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 yonng 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 7(5 



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 



