The K. M. I. Steam Engine - p335

doi:10.1038/scientificamerican11291873-335

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The Value of Patents - p336

doi:10.1038/scientificamerican11291873-336

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A New and Important Discovery Relating to the Behavior of Metals Under Stress - p336

doi:10.1038/scientificamerican11291873-336a

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Patents for Simple Things - p336

doi:10.1038/scientificamerican11291873-336b

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Boston Rebuilt - pp336 - 337

doi:10.1038/scientificamerican11291873-336c

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Physical and Mental Over-Culture - p337

doi:10.1038/scientificamerican11291873-337

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Boiler Explosion - p337

doi:10.1038/scientificamerican11291873-337a

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Phosphor-Bronze - p337

doi:10.1038/scientificamerican11291873-337b

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Scientific and Practical Information - p337

doi:10.1038/scientificamerican11291873-337c

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Improved Churning Apparatus - p338

doi:10.1038/scientificamerican11291873-338

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Bartholomew's Improved Torch - pp338 - 339

doi:10.1038/scientificamerican11291873-338a

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Pardee Hall and Its Founder - p339

doi:10.1038/scientificamerican11291873-339

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Whitehead's Combination Tool - pp339 - 340

doi:10.1038/scientificamerican11291873-339a

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Laboratory Notes - p340

S. P Sharples

doi:10.1038/scientificamerican11291873-340a

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Prizes for Improvements - p341

doi:10.1038/scientificamerican11291873-341

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Improved Turbine Wheel Governor - p342

doi:10.1038/scientificamerican11291873-342

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Gas Bracket Match Safe - p342

doi:10.1038/scientificamerican11291873-342a

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Blacksmith's Measuring Wheel - p343

doi:10.1038/scientificamerican11291873-343

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The Black Necked Swan - pp343 - 344

doi:10.1038/scientificamerican11291873-343a

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The Deep Injection of Chloroform - p344

doi:10.1038/scientificamerican11291873-344

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Science and Health - p345

doi:10.1038/scientificamerican11291873-345

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Recent American and Foreign Patents - pp345 - 346

doi:10.1038/scientificamerican11291873-345a

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Answers to Correspondents - pp347 - 348

doi:10.1038/scientificamerican11291873-347b

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Communications Received - p348

doi:10.1038/scientificamerican11291873-348

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