largest circulation of any scientific work in the world. $3 a year. Specimen copies sent free. Building Edition monthly $2.50 a year. Single PLANTS. SUPPLYAs _ BELTING of Various Styles ELEVATORS CONVEYORS COAL MINING and HANDLING MACHINERY. PAPER. A New Printing-Out Ready Sensitized Paper. epera Park .Y., scientific american, 1894-04-07
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