BRIGHT COLOURS OF CATERPILLARS.
A SUMMARY AND CONCLUDING REMARKS ON INSECTS.
CHAPTER XII. — SECONDARY SEXUAL CHARACTERS OF FISHES, AMPHIBIANS, AND REPTILES.
CHAPTER XIII. — SECONDARY SEXUAL CHARACTERS OF BIRDS.
DISPLAY BY MALE BIRDS OF THEIR PLUMAGE.
CHAPTER XIV. — BIRDS—continued.
MENTAL QUALITIES OF BIRDS, AND THEIR TASTE FOR THE BEAUTIFUL.
PREFERENCE FOR A PARTICULAR MALES BY THE FEMALES.
GRADATION OF SECONDARY SEXUAL CHARACTERS.
CHAPTER XV. — Birds—continued.
CHAPTER XVI. — BIRDS—concluded.
ON THE COLOUR OF THE PLUMAGE IN RELATION TO PROTECTION.
A SUMMARY OF THE FOUR CHAPTERS ON BIRDS.
CHAPTER XVII. — SECONDARY SEXUAL CHARACTERS OF MAMMALS.
CHOICE IN PAIRING BY EITHER SEX OF QUADRUPEDS.
CHAPTER XVIII. — SECONDARY SEXUAL CHARACTERS OF MAMMALS—continued.
COLOUR OF THE HAIR AND OF THE NAKED SKIN.
EQUAL TRANSMISSION OF ORNAMENTAL CHARACTERS TO BOTH SEXES.
PART III. — SEXUAL SELECTION IN RELATION TO MAN, AND CONCLUSION.
CHAPTER XIX. — SECONDARY SEXUAL CHARACTERS OF MAN.
DIFFERENCE IN THE MENTAL POWERS OF THE TWO SEXES.
THE INFLUENCE OF BEAUTY IN DETERMINING THE MARRIAGES OF MANKIND.
CHAPTER XX. — SECONDARY SEXUAL CHARACTERS OF MAN—continued.
