Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 66
sinceoccupied a prominent position. It was impossible to think of selling orig-inal musical records to the public. Onerecord made by a first-class artist might cost several hundred dollars. Clearly, somemethod had to be invented of duplicatingthe original precious record—some methodcomparable with… … EDISON AND HIS PHONOGRAPH. PHOTOGRAPHTAKEN IN 1878 deep, or about the thickness of tissue-paper.The millions of microscopic waves in arecord must be duplicated so as to be abso-lutely identical with their originals and befree from false vibrations and other defects.Obviously, wax duplicates could…
Children's literature
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