Improvement in Hot-air Engines - p257

doi:10.1038/scientificamerican04241869-257

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Contrast and Admixture of Colors - pp257 - 258

doi:10.1038/scientificamerican04241869-257a

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How Golden Hair is Obtained - p258

doi:10.1038/scientificamerican04241869-258

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Practical Suggestions on Tanning Leather - pp258 - 259

C. Gilpin

doi:10.1038/scientificamerican04241869-258a

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Explosive Compounds for Engineering Purposes - p259

doi:10.1038/scientificamerican04241869-259

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Ambergris - p259

doi:10.1038/scientificamerican04241869-259a

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International Trial of Reaping Machines - p260

doi:10.1038/scientificamerican04241869-260

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Farmer's Hand Dumping Barrow - p260

doi:10.1038/scientificamerican04241869-260a

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Beet Root Sugar - pp261 - 262

doi:10.1038/scientificamerican04241869-261

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Gravitation the Origin of the Heat of the Sun - pp262 - 264

doi:10.1038/scientificamerican04241869-262a

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Cultivation of the Poppy and Manufacture of Opium - p264

doi:10.1038/scientificamerican04241869-264

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Shafting, Pulleys, and Belts - p264

doi:10.1038/scientificamerican04241869-264a

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The Patent Office before Congress Again - p265

doi:10.1038/scientificamerican04241869-265

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The Heating of Buildings - p265

doi:10.1038/scientificamerican04241869-265a

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An Important Office to Fill - p265

doi:10.1038/scientificamerican04241869-265b

PDF (266 KB)

Persons Unfitted for the Commissionership - p265

doi:10.1038/scientificamerican04241869-265c

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The Pacific Railway Imbroglio - pp265 - 266

doi:10.1038/scientificamerican04241869-265d

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Springs, their Power and Uses - p266

doi:10.1038/scientificamerican04241869-266

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Protoplasm - p266

doi:10.1038/scientificamerican04241869-266a

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Skinning and Stuffing Birds - p266

doi:10.1038/scientificamerican04241869-266b

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Why don't Boys Learn Trades?—Mechanical Labor - pp266 - 267

doi:10.1038/scientificamerican04241869-266c

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Velocipede Notes - p267

doi:10.1038/scientificamerican04241869-267

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Editorial Summary - p267

doi:10.1038/scientificamerican04241869-267a

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Velocipede Patents - p267

doi:10.1038/scientificamerican04241869-267b

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New Publications - p267

doi:10.1038/scientificamerican04241869-267c

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Answers to Correspondence - pp267 - 268

doi:10.1038/scientificamerican04241869-267d

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Manufacturing, Mining, and Railroad Items - p268

doi:10.1038/scientificamerican04241869-268a

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Recent American and Foreign Patents - p268

doi:10.1038/scientificamerican04241869-268b

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Official List of Patents - p269

doi:10.1038/scientificamerican04241869-269

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Patent Offices - p270

doi:10.1038/scientificamerican04241869-270

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European Patents - p270

doi:10.1038/scientificamerican04241869-270a

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