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Heat and Magnetism. IMPROVED TRICYCLES. THE 'LEICESTER SAFETY' TRICYCLE. A Place where They Have no Flies. Progress of quarrying. Professor Henry in Bronze. Nickel for Galvanoplastic Purposes. IMPROVED FIRE ESCAPE. JOLLEY'S FIRE ESCAPE. THE ' COOLY ' TRICYCLE., scientific american, 1883-04-14
Heat and Magnetism. IMPROVED TRICYCLES. THE 'LEICESTER SAFETY' TRICYCLE. A Place where They Have no Flies. Progress of quarrying. Professor Henry in Bronze. Nickel for Galvanoplastic Purposes. IMPROVED FIRE ESCAPE. JOLLEY'S FIRE ESCAPE. THE ' COOLY ' TRICYCLE., scientific american, 1883-04-14
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