This book contains the substance of a course of lectures recently given by the writer in the Queen Street Hail, Edinburgh. Its purpose is to indicate the Natural Principles governing the relation between Mental Action and Material Conditions, and thus to afford the student an intelligible starting-point for the practical study of the subject. T. T. March, 1904. Это и многое другое вы найдете в книге The Edinburgh Lectures on Mental Science (1909)