Note: Project Gutenberg also has an HTML version of this file which includes the original illustrations. See 18273-h.htm or 18273-h.zip: (https://www.gutenberg.org/dirs/1/8/2/7/18273/18273-h/18273-h.htm) or (https://www.gutenberg.org/dirs/1/8/2/7/18273/18273-h.zip) The Table of Contents and the List of Illustrations were added by the transcriber. The text refers to 76 photographic "PLATES," but the source copy contained only the first. Two of the illustrations were labeled "FIG. 26;" I have labeled them FIG. 26A and FIG. 26B.…
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