Note 6 — Chapter I · NATURE’S INSURGENT SON

A short discussion of this subject and the introduction of the term ‘educability’ was published in a paper by me entitled ‘The Significance of the Increased Size of the Cerebrum in recent as compared with extinct Mammalia,’ Cinquantenaire de la Société de Biologie, Paris, 1899, pp. 48–51.

It has been pointed out to me by my friend Dr. Andrews, of the Geological Department of the British Museum, that the brain cavity of the elephants was already of relatively large size in the Eocene members of that group, which may be connected with the persistence of these animals through subsequent geological periods.