Original Work in America - pp208 - 209

doi:10.1038/scientificamerican04041891-208

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A Readily Applied Car Replacer - p210

doi:10.1038/scientificamerican04041891-210

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A Quilter for Sewing Machines - p210

doi:10.1038/scientificamerican04041891-210a

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A Propelling Mechanism for Vehicles - p210

doi:10.1038/scientificamerican04041891-210b

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An Improved Wrench - p210

doi:10.1038/scientificamerican04041891-210c

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A Tool Holder for Lathes, Planers Etc. - p211

doi:10.1038/scientificamerican04041891-211

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Fireproof Partition Walls - p211

doi:10.1038/scientificamerican04041891-211a

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A Mechanical Stoker - p211

doi:10.1038/scientificamerican04041891-211b

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The Patent Centennial - pp213 - 215

doi:10.1038/scientificamerican04041891-213

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Optical Projection of Opaque Objects - pp216 - 217

Geo. M. Hopkins, By

doi:10.1038/scientificamerican04041891-216

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New Books and Publications - p218

doi:10.1038/scientificamerican04041891-218a

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A SuccessfuI Life - p218

John P. Lovell, By

doi:10.1038/scientificamerican04041891-218b

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To Inventors - p219

doi:10.1038/scientificamerican04041891-219

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Advertisements - p220

doi:10.1038/scientificamerican04041891-220

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Useful Books - p220

doi:10.1038/scientificamerican04041891-220a

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Experimental Science - p221

Geo. M. Hopkins, By

doi:10.1038/scientificamerican04041891-221a

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The Scientific American Publications for 1891 - p221

doi:10.1038/scientificamerican04041891-221b

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The Scientific American Established 1846 - p222

doi:10.1038/scientificamerican04041891-222

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