* Obvious printer errors have been silently corrected. * Original spelling was kept. * Variant spellings were made consistent when a predominant usage was found. * Italics are represented between underscores as in _italics_. * Small caps are represented in upper case as in SMALL CAPS. * Illustrations have been slightly moved so that they do not break up paragraphs while remaining close to the text they illustrate. * Illustration captions have been harmonized and made consistent so that the same expressions appear both in them and in the List of Full Page Illustrations. _ILLUSTRATED BY P. PHILIPPOTEAUX, AND TRANSLATED FROM THE FRENCH …
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