Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. Hough introductions have long since come to be re garded as impertinences, and prefaces abandoned as unnecessary, I feel that some sort of general. Statement is due from me, when offering to the public a work of such a dis tinctly two-fold character as this, in one volume.