Production of Iron and Steel in America - p96

doi:10.1038/scientificamerican08141886-96

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Heavy Ordnance for Coast Defense - p96

doi:10.1038/scientificamerican08141886-96a

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Disease Germs in Milk - pp96 - 97

doi:10.1038/scientificamerican08141886-96b

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Improved Cultivator - p98

doi:10.1038/scientificamerican08141886-98

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Rubbing Machine - p98

doi:10.1038/scientificamerican08141886-98a

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Platform Spring for Vehicles - p98

doi:10.1038/scientificamerican08141886-98b

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Rotary Engine - p98

doi:10.1038/scientificamerican08141886-98c

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Switch Stand - p98

doi:10.1038/scientificamerican08141886-98d

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Improved Steam Heater - p99

doi:10.1038/scientificamerican08141886-99

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Levesque's Diplograph - p99

doi:10.1038/scientificamerican08141886-99a

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Cracker Box Cover - pp99 - 100

doi:10.1038/scientificamerican08141886-99b

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The Statue of Liberty Nearing Completion - pp100 - 101

doi:10.1038/scientificamerican08141886-100

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The Great Log Jam in the St. Croix River - pp101 - 102

H. C. Hovey

doi:10.1038/scientificamerican08141886-101

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The Formation and Fixation of Magnetic Curves - p102

Geo. M. Hopkins

doi:10.1038/scientificamerican08141886-102

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The Occurrence and Fabrication of Rock Crystal - pp103 - 104

doi:10.1038/scientificamerican08141886-103

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A Wrench with Lift Cams - p104

doi:10.1038/scientificamerican08141886-104

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A Hammerless Breech-Loading Gun - p104

doi:10.1038/scientificamerican08141886-104a

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Device for Controlling Locks on Railway Cars - p104

doi:10.1038/scientificamerican08141886-104b

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Rain Water Filter - p104

doi:10.1038/scientificamerican08141886-104c

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Experiments in Sound - p105

T. O'conor Sloane

doi:10.1038/scientificamerican08141886-105

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Disintegration of Cast Iron by Coal Gas Flame - p105

doi:10.1038/scientificamerican08141886-105a

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Photographic Notes - p106

doi:10.1038/scientificamerican08141886-106a

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Engineering Inventions - p107

doi:10.1038/scientificamerican08141886-107

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Miscellaneous Inventions - p107

doi:10.1038/scientificamerican08141886-107a

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To Inventors - p107

doi:10.1038/scientificamerican08141886-107e

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