INTRODUCTION. Considerable parts of this book have been written for the unlearned. For the scholarly reader such parts, of course, would be wholly superfluous; yet it is hoped that they to whom these are familiar will be patient in passing through them for the sake of others to whom they may be instructive. Other parts, again, it is believed, will be found new to the most of even educated minds. But men of the largest intellectual attainments... more...