8 CONTENTS 



CHAPTER PAGE 



XXV. Early Americans 200 



XXVI. American Native Races of Men .... 208 



XXVII. Adaptation of Mammals to varied Conditions 219 



XXVIII. The Games of Mammals 226 



XXIX. The Intelligence of Mammals .... 230 



XXX. Geographical Distribution of Mammals . . 240 



XXXI. Mammals Underground 248 



INDEX 251 



