3What I wish particularly to convey to you within these pages is the method of ientific right thinking, and to awaken in you the desire to try to use this method in order to form the habit of thinking ONLY the thoughts you wish to see crystallized in a worthy achievement or result. My chief idea in sending forth this message is to make it easier for you to live in hourly con sciousness that you have been given dominion over every adverse circumstance and condition which may arise. The conscious use of the creative power of thought to protect and guide you, as well as to provide for you, is only attainable through understanding the "natural relations between mental action and material conditions." Genevieve Behrend This book contains the substance of a course of lectures given by the writer in the Queen Street Hall, 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. Thomas Troward