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OCR
PREFACE THESE chapters form a series of sketches, each of which is complete in itself. In compiling them I have been obliged continually to go over ground already occupied by myself or others. I have endeavoured, nevertheless, to-include the results of the latest researches and discoveries; and although it is not easy to say anything absolutely new about such a well-worn theme, I hope I have been able to put some facts in a new light, and to strengthen the position of others which may hitherto have appeared obscure. one (ae 8
