Higgings& Patent Anchor Tripper - p209

doi:10.1038/scientificamerican03311860-209

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The Daguerreotype - p209

doi:10.1038/scientificamerican03311860-209a

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The Obstruction to the Navigation of Rivers Caused by the Piers of Bridges - p210

J. W. Sprague

doi:10.1038/scientificamerican03311860-210

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Glycerine for Gas Meters - p210

doi:10.1038/scientificamerican03311860-210a

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Loss of Light by Glass Shades - p210

doi:10.1038/scientificamerican03311860-210b

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How to Make a Mushroom Bed - p211

doi:10.1038/scientificamerican03311860-211

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A Wonderful Cave - p211

doi:10.1038/scientificamerican03311860-211a

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A Sparkling Vane - p211

doi:10.1038/scientificamerican03311860-211b

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Philosophical Instruments - p211

doi:10.1038/scientificamerican03311860-211c

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The Water Wheel Experiments at Philadelphia - p211

doi:10.1038/scientificamerican03311860-211d

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Fawkes' Steam Plow - p211

doi:10.1038/scientificamerican03311860-211e

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A Chance for Inventors—a Greater than Whitney Wanted - p212

doi:10.1038/scientificamerican03311860-212

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Curious Optical Phenomena - pp212 - 213

doi:10.1038/scientificamerican03311860-212a

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A New Areometer for Determining the Real Density of Liquids - p213

doi:10.1038/scientificamerican03311860-213

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Polytechnic Association of the American Institute - pp213 - 214

doi:10.1038/scientificamerican03311860-213a

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American Naval Architecture - p214

doi:10.1038/scientificamerican03311860-214

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Iron and Wooden Ships - p214

doi:10.1038/scientificamerican03311860-214a

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English Locomotives on a “Bender” - pp214 - 215

doi:10.1038/scientificamerican03311860-214b

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A Column of Varieties - p215

doi:10.1038/scientificamerican03311860-215

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Improved Mole for Drain Plows - p216

doi:10.1038/scientificamerican03311860-216

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Improved Hay—Maker - p216

doi:10.1038/scientificamerican03311860-216a

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Wooden and Iron Ships - p217

doi:10.1038/scientificamerican03311860-217

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The Leather-Dealers and the Lynn Strikers - p217

doi:10.1038/scientificamerican03311860-217a

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Activity and Industry of Inventors - p217

doi:10.1038/scientificamerican03311860-217b

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Working Steam Expansively - pp217 - 218

doi:10.1038/scientificamerican03311860-217c

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Peroration on a Wagon Brake - p218

doi:10.1038/scientificamerican03311860-218

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Testimonial Letters - p218

doi:10.1038/scientificamerican03311860-218a

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Self-Acting Ships' Pump - p218

doi:10.1038/scientificamerican03311860-218b

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Industry—Manufactures—Commerce - p218

doi:10.1038/scientificamerican03311860-218c

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The Profits of Tanning - p218

doi:10.1038/scientificamerican03311860-218d

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Foreign News and Markets - p219

doi:10.1038/scientificamerican03311860-219

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Weekly Summary of Inventions - p219

doi:10.1038/scientificamerican03311860-219a

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Patent Claims - pp219 - 222

doi:10.1038/scientificamerican03311860-219b

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Greene's Gas Lamp - p224

doi:10.1038/scientificamerican03311860-224

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Jorey's Patent Horse Shoe - p224

doi:10.1038/scientificamerican03311860-224a

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Lapham's Steam Trap - p224

doi:10.1038/scientificamerican03311860-224b

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Howe's Sewing Machine Trial - p224

doi:10.1038/scientificamerican03311860-224c

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Applications for the Extension of Patents - p224

doi:10.1038/scientificamerican03311860-224d

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