The Animal Mind: A Textbook of Comparative Psychology, Second Edition
The title of this book might more appropriately, if not more concisely, have been "The Animal Mind as Deduced from Experimental Evidence." For the facts set forth in this volume are very largely the results of the experimental method in comparative psychology. Thus many aspects of the animal mind, to the investigation of which experiment either has not yet been applied or is perhaps not adapted, are left wholly unconsidered. This limitation of the scope of the book is a consequence of its aim to supply a chief need of comparative psychology at the present time.
Although the science is still in its formative stage, the mass of experimental material that has been accumulating from the researches of physiologists and psychologists is already great, and is also for the most part inaccessible to the ordinary student, being widely scattered and to a considerable extent published In journals which the average college library does not contain. While there are books on animal instincts and on the interpretation of animal behavior, there is no book which adequately presents the simple facts.