Freiburg-in-Breisgau. With 24
Illustrations. 6s.

"There has been no work published since Darwin's own books
which has so thoroughly handled the matter treated by him, or
has done so much to place in order and clearness the immense
complexity of the factors of heredity, or, lastly, has brought
to light so many new facts and considerations bearing on the
subject."--_British Medical Journal_.

XXIII. INDUSTRIES OF ANIMALS. By F. HOUSSAY. With numerous
Illustrations. 3s. 6d.

"His accuracy is undoubted, yet his facts out-marvel all
romance. These facts are here made use of as materials
wherewith to form the mighty fabric of evolution."--_Manchester
Guardian_.

XXIV. MAN AND WOMAN. By HAVELOCK ELLIS. Illustrated. Second Edition. 6s.

"Mr. Havelock Ellis belongs, in some measure, to the
continental school of anthropologists; but while equally
methodical in the collection of facts, he is far more cautious
in the invention of theories, and he has the further
distinction of being not only able to think, but able to write.
His book is a sane and impartial consideration, from a
psychological and anthropological point of view, of a subject
which is certainly of primary interest."--_Athenaeum_.

XXV. THE EVOLUTION OF MODERN CAPITALISM. By JOHN A. HOBSON, M.A. 3s. 6d.

"Every page affords evidence of wide and minute study, a
weighing of facts as conscientious as it is acute, a keen sense
of the importance of certain points as to which economists of
all schools have hitherto been confused and careless, and an
impartiality generally so great as to give no indication of his
[Mr. Hobson's] personal sympathies."--_Pall Mall Gazette_.

XXVI. APPARITIONS AND THOUGHT-TRANSFERENCE. By FRANK PODMORE, M.A. 3s.
6d.

"A very sober and interesting little book.... That
thought-transference is a real thing, though not perhaps a very
common thing, he certainly shows."--_Spectator_.

XXVII. AN INTRODUCTION TO COMPARATIVE PSYCHOLOGY. By Professor C. LLOYD
MORGAN, F.R.S. With Diagrams. 6s.

"A strong and complete exposition of Psychology, as it takes
shape in a mind previously informed with biological science....
Well written, extremely entertaining, and intrinsically
valuable."--_Saturday Review_.

XXVIII. THE ORIGINS OF INVENTION: A Study of Industry among Primitive
Peoples. By OT