CONTENTS 



PAGE 



i A Century of Scientific Thought I 



ii Darwin and the Theory of Natural 



Selection 33 



in Weismann and the Germ-Plasm 



Theory 57 



iv De Vries and the Theory of Mutations 92 



v Mendel and his Theory of Heredity 106 



vi The Form of the Human Skull 123 



vii The Earliest Men 158 



vni Some Recent Works on the Antiquity 



of Man 197 



ix Totemism and Exogamy 223 



x Stonehenge and the Stars 242 



xi Who Were the Fairies ? 261 



Index of Names 279 



General Index 282 



