14 THE LAW OF BIRTHS AND DEATHS 



CHAPTER IX 



PAGE 



SOME POSSIBLE CRITICISMS ANTICIPATED . . . 155 



CHAPTER X 

 MAI/THUS ........ 162 



CHAPTER XI 

 SPENCER ........ 166 



CHAPTER XII 



DOUBLEDAY'S THEORY AND RECENT EXPERIMENTS . . 177 



CHAPTER XIII 

 THE FUTURE . . . 183 



