Hydraulic Cow Milking Machine - p273

doi:10.1038/scientificamerican05021868-273

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The Chemistry of Tobacco - pp273 - 274

doi:10.1038/scientificamerican05021868-273a

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Editorial Correspondence - pp274 - 275

doi:10.1038/scientificamerican05021868-274

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The Manufacture of French Leather - p275

doi:10.1038/scientificamerican05021868-275

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The Watch—Its History and Manufacture - pp275 - 276

H. F. Piaget

doi:10.1038/scientificamerican05021868-275a

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Morse's Plan for Centering and Packing Bobbins - p276

doi:10.1038/scientificamerican05021868-276

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The Excelsior Grinder for Mowing and Reaping Machines - pp276 - 277

doi:10.1038/scientificamerican05021868-276a

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Hilbert's Self-Acting Lubricator - p277

doi:10.1038/scientificamerican05021868-277

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Manufacturing Mining, and Railroad Items - p278

doi:10.1038/scientificamerican05021868-278

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Recent American and Foreign Patents - pp278 - 279

doi:10.1038/scientificamerican05021868-278a

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Extension Notices - pp279 - 280

doi:10.1038/scientificamerican05021868-279a

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The Principle of the Giffard Injector - p281

doi:10.1038/scientificamerican05021868-281

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Is There Any Thing New under the Sun? - p281

doi:10.1038/scientificamerican05021868-281a

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Pacific Railroad Progress - p281

doi:10.1038/scientificamerican05021868-281b

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A Remarkable Gas Well - p281

doi:10.1038/scientificamerican05021868-281c

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History of the Watch - p281

doi:10.1038/scientificamerican05021868-281d

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Official Report of Patent and Claims - pp282 - 286

doi:10.1038/scientificamerican05021868-282

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