CONTENTS OF VOL. II. 
Vll 
CHAPTEE XYIT. 
Secondaky Sexual Characters of Mammals. 
The law of battle — Special weapons, confined to the males — Cause 
of absence of weapons in the female — Weapons common to both 
sexes, yet primarily acquired by the male' — Other uses ot such 
weapons — Their high importance — Greater size of the male 
Means of defence — On the preference shewn by either sex in the 
pairing of quadrupeds Page 239-273 
CHAPTEE XVIII. 
Secondary Sexual Characters of Mammals — continued . 
Voice — Remarkable sexual peculiarities in seals — Odour — Deve- 
lopment of the hair — -Colour of the hair and skin — Anomalous 
case of the female being more ornamented than the male — 
Colour and ornaments due to sexual selection — Colour acquired 
for the sake of protection — Colour, though common to both 
sexes, often due to sexual selection — On the disappearance of 
spots and stripes in adult quadrupeds — On the colours and 
ornaments of the Quadrumana — Summary .. .. 274-315 
CHAPTEE XIX. 
Secondary Sexual Characters of Man. 
Differences between man and woman — Causes of such differences 
and of certain characters common to both sexes — Law of battle 
- — Differences in mental powers — and voice — On the influence 
of beauty in determining the marriages of mankind — Attention 
paid by savages to ornaments — Their ideas of beauty in woman 
— The tendency to exaggerate each natural peculiarity 316-354 
