Review of Reviews.
"This book presents evidences of mental action of the lower animals in a clear, simple, and brief form. The author has avoided technicalities, and has also resisted the temptation of the psychologist to indulge in metaphysics. Dr. Weir has relied for evidence on the results of his own independent study of biology at first hand, disregarding the second-hand data used by many of the authors once regarded as standard authorities in this department of research."
The Nation:
"The title raised in our mind some vague fears that we might find physiology and psychology mixed up inexpertly with metaphysics; but we see in the writer a close observer, who takes his stand on firm ground, and goes into the objective world of animals for his facts."
THE MACMILLAN COMPANY
66 FIFTH AVENUE, NEW YORK
Transcriber's note
The following changes have been made to the text: