Contents. xt 



PART IV. THE LAWS OF GENERATION. 

 CHAPTER I. VEGETABLE REPRODUCTION. 



Dignity and Importance of the Function of Reproduction Various Modes 

 of Reproduction in Vegetables Functions of Flowers Processes in 

 Fertilisation Pollen and Germ True Generation - Formation of 

 Bulbs- --Tubers Slips, Buds, and Grafts Spores Loves of the 

 Plants, .... 241-245 



CHAPTER II. ANIMAL REPRODUCTION. 



Varieties of Modes of Reproduction in Animals Gemmation Fission 

 Rapid Multiplication Artificial Reproduction Production of Eggs 

 Masculine and Feminine Elements The Propagation of Fishes, Insects, 

 Birds, the Mammalia Size of Eggs, .... 246-250 



CHAPTER III. GERMINATION AND FECUNDATION. 



Production of Germs in Vegetables, Insects, and Animals Varying Powers 

 of Reproduction Office of the Ovaries Anatomy of the Testes 

 Evolution of Spermatozoa Results of Impregnation Changes at 

 Puberty Peculiarities and Mission of Woman, . . 250-257 



CHAPTER IV. EMBRYOLOGY. 



Changes at Conception Foetus in Utero Size and Development of the 

 Human Ovum The Hen's Egg Development of Chick in Process of 

 Incubation Development of Fishes Growth of HumanFoetus Pecu- 

 liarities of Foetal Life Phenomena of Birth Lactation, 257-266 



CHAPTER V. PHYSICAL LOVE. 



Sexual Attractions Blind and Regulated Instinct Phenomena of Impreg- 

 nation Law of Sexual Union among Animals Normal Period of Con- 

 ception Natural Laws of Human Sexual Relations Law of Exercise 

 Law of Chastity Dangers of Childhood and Youth, . 267-274 



CHAPTER VI. LOVE AND MARRIAGE. 



Sexual Attraction Various Kinds of Love Attraction of Opposites First 

 Love Spiritual Loves Loves that should not End in Marriage 

 Various Forms of Marriage Sexual Relations of Animals Reasons 

 for Monogamy Celibacy Who Have a Right to Marry Should 

 Marriage be for Life? Divorce, ..... 275-283 



CHAPTER VII. HEREDITARY TRANSMISSION. 



Laws of Breeding Plants and Animals Darwin on Marriage Hereditary 

 Transmission of Peculiarities of Race Mixed Characters Transmitted 

 Law of Hereditary Vices Qualities given by each Parent Influ- 

 ences during Gestation Blood or Race Inherited Disease and 

 Moral Predispositions Fruitfulness and Longevity Ante-Natal Im- 

 pressions, ......... 284-293 



