Underscores “_” before and after a word or phrase indicate _italics_ in the original text. Equal signs “=” before and after a word or phrase indicate =bold= in the original text. Small capitals have been converted to SOLID capitals. Illustrations and footnotes have been moved so they do not break up paragraphs. Antiquated spellings have been preserved. Typographical and punctuation errors have been silently corrected. In the Table of Contents, Chapters XV and XVI were corrected from page 200 to 211 and 216 respectively. Figure 46 was incorrectly labelled Figure 45, this has been corrected. WITH ITS APPLICATION TO THE FINE AND USEFUL ARTS …
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