SCIENTIFIC AMERICAN. 301 The Mechanical Genius of the Ancients Wrongly Directed. Woolen Manufactures. The Planet Neptune. Iron Trade of America. Another Chain of Railroad. Tunnels. Buffalo and its Commerce. English Navigation Laws. Southern Factories. Rotary Engines. Lniversal Penny Postage. Copper. Ingot Copper. To New Subscribers. SCIENTIFIC AMERICAN., 1847-06-12
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