Improvement in Power Mortising Machines, Improvement in Plow Clevis, and more - pp177 - 178

doi:10.1038/scientificamerican03211868-177

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Curious Applications of Electricity - p178

doi:10.1038/scientificamerican03211868-178

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Heat and Cold - pp179 - 180

John Tyndall, Esq., LL. D., F.R.S.

doi:10.1038/scientificamerican03211868-179

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Dittenhaver's Adjustable Clothes Line Post - p180

doi:10.1038/scientificamerican03211868-180

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Turning a Movable Wheel Around a Fixed Wheel - pp180 - 182

doi:10.1038/scientificamerican03211868-180a

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Editorial Correspondence - p182

doi:10.1038/scientificamerican03211868-182

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Manufacturing, Mining, and Railroad Items - p182

doi:10.1038/scientificamerican03211868-182a

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Recent American and Foreign patents - pp182 - 183

doi:10.1038/scientificamerican03211868-182b

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Answers to Correspondents - p183

doi:10.1038/scientificamerican03211868-183

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Practical Information for Mechanics - p185

doi:10.1038/scientificamerican03211868-185

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Improvement in the Manufacture of Machinists' Tools - p185

doi:10.1038/scientificamerican03211868-185a

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Fish as Food—its Relative Value - p185

doi:10.1038/scientificamerican03211868-185b

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The new French Gas Light - pp185 - 186

doi:10.1038/scientificamerican03211868-185c

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Editorial Summary - p186

doi:10.1038/scientificamerican03211868-186

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Patents and Claims - pp186 - 190

doi:10.1038/scientificamerican03211868-186a

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New Publications - pp190 - 191

doi:10.1038/scientificamerican03211868-190

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