"Physiology is at the foundation of all human science. A thorough knowledge of it is absolutely necessary to a full understanding of the mind, and the laws which regulate it. Physiology and Phrenology are, by nature, inseparably connected; hence, they should be studied, not separately, but in connexion with each other. The general laws and principles of Physiology are explained in volume one; it is therefore the design of the present volume to present the functions of the mind in a clear and familiar manner, so illustrated and explained by numerous cuts and anecdotes, that it cannot fail to interest and instruct children. These two volumes are cheerfully recommended to parents and teachers to place into the hands of their children as a guide to self-knowledge"--Preface. (PsycINFO Database Record (c) 2009 APA, all rights reserved).