Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 715
to shift the slides so as to makeone picture fade away and the other develop.There are big double machines, or, better, twinmachines, that can do this automatically and witha degree of success; but they are large and heavyand not quite perfect in their working. Nowyoung Vischer has invented a…
Children's literature
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