The Geological Hall of the American Museum of Natural History - p239

L. P. Gratacap

doi:10.1038/scientificamerican04171886-239

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The Coast Survey - p240

doi:10.1038/scientificamerican04171886-240

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Railways in China - pp240 - 241

doi:10.1038/scientificamerican04171886-240a

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Mechanics' Keying Clamp - p242

doi:10.1038/scientificamerican04171886-242

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Reclining Rocking Chair - p242

doi:10.1038/scientificamerican04171886-242a

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Convertible Keg - p242

doi:10.1038/scientificamerican04171886-242b

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End Gate for Wagons - p242

doi:10.1038/scientificamerican04171886-242c

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Improved Heating Stove - p243

doi:10.1038/scientificamerican04171886-243

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An Engine and Boiler for Good Service - p243

doi:10.1038/scientificamerican04171886-243a

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A Positive Cyclometer - pp243 - 244

doi:10.1038/scientificamerican04171886-243b

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Automatic Clothes Drier - p244

doi:10.1038/scientificamerican04171886-244

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Leather-Link Machinery Belt - p244

doi:10.1038/scientificamerican04171886-244a

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Furniture and Decorations of a Library - p246

doi:10.1038/scientificamerican04171886-246

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Manufacture of Gelatino-Bromide Dry Plates - pp247 - 248

doi:10.1038/scientificamerican04171886-247

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Pygmy Cattle - p249

doi:10.1038/scientificamerican04171886-249

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Engineering Inventions - p250

doi:10.1038/scientificamerican04171886-250

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Agricultural Inventions - p250

doi:10.1038/scientificamerican04171886-250a

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Miscellaneous Inventions - p250

doi:10.1038/scientificamerican04171886-250b

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Special - p250

doi:10.1038/scientificamerican04171886-250d

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