"The following work is the substance of various speculations, that occasionally amused the author, and enlivened his leisure-hours. It is not intended for the learned; they are above it: nor for the vulgar; they are below it. It is intended for men, who, equally removed from the corruption of opulence, and from the depression of bodily labour, are bent on useful knowledge; who, even in the delirium of youth, feel the dawn of patriotism, and who in riper years enjoy its meridian warmth. To such men this work is dedicated; and that they may profit by it, is the author's ardent wish, and probably will be while any spirit remains in him to form a wish"--Preface. (PsycINFO Database Record (c) 2008 APA, all rights reserved).