I should be glad to think that the present work might help, however little, to hasten the coming reunion between the “humanities” and modern biological science; their present separation I believe to be against the best interest of both.

A. J. B.

22nd Stationary Hospital, Aldershot.
March, 1916.

[Pg vii-viii]

CONTENTS

page
preface[v]
introduction[ix]
bibliography[xli]
synopsis of chapters[xliii]
book i[1]
book ii[117]
book iii[223]
index and glossary[335]

[Pg ix]

INTRODUCTION