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 have been moved so they do not break up paragraphs. Typographical and punctuation errors have been silently corrected. The Book of Wireless The Book of Stars The Book of Magic The Book of Electricity Gas, Gasoline and Oil Engines The Amateur Chemist The Amateur Mechanic H…
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