Royal E. House's Telephone of 1868 - p303

doi:10.1038/scientificamerican11131886-303

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The Bell Telephone Patent Probably Broken - p304

doi:10.1038/scientificamerican11131886-304

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The Recent Boiler Explosion at Charlotte, N. C - p304

doi:10.1038/scientificamerican11131886-304a

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A Remarkable Railway Accident - pp304 - 305

doi:10.1038/scientificamerican11131886-304b

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The New Navy - p305

doi:10.1038/scientificamerican11131886-305

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The Dynamo Colossus at Work - p305

WM. H. Hale, PH.D

doi:10.1038/scientificamerican11131886-305a

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Frogless Switch - p306

doi:10.1038/scientificamerican11131886-306

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Cylinder Cock - p306

doi:10.1038/scientificamerican11131886-306a

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Ore Separator - p306

doi:10.1038/scientificamerican11131886-306b

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Railroad Fence - p306

doi:10.1038/scientificamerican11131886-306c

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Cutting Apparatus for Mowers and Reapers - p306

doi:10.1038/scientificamerican11131886-306d

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Improved Sleigh - p307

doi:10.1038/scientificamerican11131886-307

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Flour Chest and Sifter - p307

doi:10.1038/scientificamerican11131886-307a

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Improved Propeller - p307

doi:10.1038/scientificamerican11131886-307b

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Revolving Target - p307

doi:10.1038/scientificamerican11131886-307c

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Electric Clock - p307

doi:10.1038/scientificamerican11131886-307d

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Measuring Pump - pp307 - 308

doi:10.1038/scientificamerican11131886-307e

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Decisions Relating to Patents - p309

Blodgett J

doi:10.1038/scientificamerican11131886-309a

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A Gigantic Kite - p310

doi:10.1038/scientificamerican11131886-310

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The New Tunnel, Konigstrasse, Berlin - pp310 - 311

doi:10.1038/scientificamerican11131886-310a

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Experiments in Equilibrium of Fluids - pp311 - 312

T. O'Conor Sloane, Ph.D.

doi:10.1038/scientificamerican11131886-311

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Rock Borers - p312

doi:10.1038/scientificamerican11131886-312

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A Sumptuous Mantel - p313

doi:10.1038/scientificamerican11131886-313

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Natural History Notes - p313

doi:10.1038/scientificamerican11131886-313a

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Engineering Inventions - p314

doi:10.1038/scientificamerican11131886-314

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Mechanical Invention - p314

doi:10.1038/scientificamerican11131886-314a

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Agricultural Invention - p314

doi:10.1038/scientificamerican11131886-314b

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Miscellaneous Inventions - p314

doi:10.1038/scientificamerican11131886-314c

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Special - p314

doi:10.1038/scientificamerican11131886-314e

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