SCIENTIFIC AMERICAN. 277 Austin's Perpetual Motion. The New Postage Law. The Boston Lines. Howitzers. 1Prolonged Siemer'. Puddling Iron. Travelling in the Air. They Will not be Permanent. Freak of Lightning. Index to the New York Municipal Gazette. Pernicious Papers. The Southern Magnetic Telegraph. Good Society. Miss Herschell. Substitute for Hemp. American Seamstresses : Moose In Maine. To New Subscribers. THE SCIENTIFIC AMERICAN. ation. A Good Sign. Mexico City., 1847-05-22
SCIENTIFIC AMERICAN. 277 Austin's Perpetual Motion. The New Postage Law. The Boston Lines. Howitzers. 1Prolonged Siemer'. Puddling Iron. Travelling in the Air. They Will not be Permanent. Freak of Lightning. Index to the New York Municipal Gazette. Pernicious Papers. The Southern Magnetic Telegraph. Good Society. Miss Herschell. Substitute for Hemp. American Seamstresses : Moose In Maine. To New Subscribers. THE SCIENTIFIC AMERICAN. ation. A Good Sign. Mexico City., 1847-05-22
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