A New Light Draft Propeller - p255

doi:10.1038/scientificamerican10211876-255

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Professor Huxley's Mistake - p256

doi:10.1038/scientificamerican10211876-256

PDF (287 KB)

The Advantages of Cheap Patents - pp256 - 257

doi:10.1038/scientificamerican10211876-256a

PDF (424 KB)

The Spiritual Slate - p257

doi:10.1038/scientificamerican10211876-257

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The Inter-Mercurial Planet - p257

doi:10.1038/scientificamerican10211876-257a

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Improved Locomotive and Car Steam Brake - p258

doi:10.1038/scientificamerican10211876-258

PDF (218 KB)

Improved Nail Extractor - p258

doi:10.1038/scientificamerican10211876-258a

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A New Fodder Fork - p258

doi:10.1038/scientificamerican10211876-258b

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Singular Accident to a Trout - p259

doi:10.1038/scientificamerican10211876-259

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Turbine Water Wheels - p260

S. W. Robinson

doi:10.1038/scientificamerican10211876-260

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The Black Knot - pp260 - 261

doi:10.1038/scientificamerican10211876-260a

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The Latest News From the Sun - p261

doi:10.1038/scientificamerican10211876-261

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A Theory of the Ball Puzzle - p262

doi:10.1038/scientificamerican10211876-262

PDF (226 KB)

The “Model” Scroll Saw - p262

doi:10.1038/scientificamerican10211876-262a

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Rubber Overshoe Making at the Centennial - pp262 - 263

doi:10.1038/scientificamerican10211876-262b

PDF (585 KB)

Seasonal Behavior of Plants - p264

doi:10.1038/scientificamerican10211876-264

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The Blessings of Gunpowder - p264

doi:10.1038/scientificamerican10211876-264a

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The Processes of Steel Manufacture - p265

doi:10.1038/scientificamerican10211876-265

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The Russian System of Trade Education - pp265 - 266

doi:10.1038/scientificamerican10211876-265a

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The Profitableness of Irrigation - p266

doi:10.1038/scientificamerican10211876-266

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Comparative Cost of Illumination - p266

doi:10.1038/scientificamerican10211876-266a

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Recent American and Foreign Patents - p267

doi:10.1038/scientificamerican10211876-267

PDF (144 KB)

New Mechanical and Engineering Inventions - p267

doi:10.1038/scientificamerican10211876-267a

PDF (144 KB)

New Woodworking and House and Carriage Building Inventions - p267

doi:10.1038/scientificamerican10211876-267b

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New Household Inventions - p267

doi:10.1038/scientificamerican10211876-267c

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New Miscellaneous Inventions - p267

doi:10.1038/scientificamerican10211876-267d

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Communications Received - p268

doi:10.1038/scientificamerican10211876-268b

PDF (337 KB)

The Validity of Patents - p269

doi:10.1038/scientificamerican10211876-269

PDF (635 KB)