Lathe for Turning Billiard Balls - p143

doi:10.1038/scientificamerican03041865-143

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Remarks on the Subject of Force in General - p144

John A. Roebling

doi:10.1038/scientificamerican03041865-144

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Wrought-Iron Guns - p145

doi:10.1038/scientificamerican03041865-145

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Books and Publications - p145

doi:10.1038/scientificamerican03041865-145a

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Report of the Committee of the Franklin Institute on Screw Threads - pp146 - 147

doi:10.1038/scientificamerican03041865-146

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Count Rumford - pp147 - 148

doi:10.1038/scientificamerican03041865-147

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Medals for Inventors in France - p149

doi:10.1038/scientificamerican03041865-149

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Cementation of Iron by Carbon from Gas Retorts - p149

doi:10.1038/scientificamerican03041865-149a

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Asparagus a Substitute for Coffee - p149

doi:10.1038/scientificamerican03041865-149b

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Goessling's Corn-Sugar Patents - pp149 - 150

doi:10.1038/scientificamerican03041865-149c

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Allen's Supporter for Fractured Legs - p150

doi:10.1038/scientificamerican03041865-150

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The Pressure on a Slide Valve - p151

doi:10.1038/scientificamerican03041865-151

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The Report on Screw Threads - p151

doi:10.1038/scientificamerican03041865-151a

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The Field of Invention Inexhaustible - p151

doi:10.1038/scientificamerican03041865-151b

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Important English Patent Law Case - pp151 - 152

doi:10.1038/scientificamerican03041865-151c

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Recent American Patents - p152

doi:10.1038/scientificamerican03041865-152

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Market for the Month - p152

doi:10.1038/scientificamerican03041865-152a

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Patent Claims - pp152 - 155

doi:10.1038/scientificamerican03041865-152b

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Fitzpatrick' Perpetual Time Indicator - p158

doi:10.1038/scientificamerican03041865-158

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