A Word to Aeroplane Builders - p418

doi:10.1038/scientificamerican06051909-418

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Naval Programme for 1911 - p418

doi:10.1038/scientificamerican06051909-418a

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The Proposed New Waterway in Canada - p418

doi:10.1038/scientificamerican06051909-418b

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Storage of Coal under Water - p418

doi:10.1038/scientificamerican06051909-418c

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Engineering - p419

doi:10.1038/scientificamerican06051909-419

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Electricity - p419

doi:10.1038/scientificamerican06051909-419a

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Science - p419

doi:10.1038/scientificamerican06051909-419b

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The Bursting of a Water Tank and Its Effect - pp420 - 421

doi:10.1038/scientificamerican06051909-420

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A Novel French Aeroplane - p421

doi:10.1038/scientificamerican06051909-421

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Some New American Aeroplanes - pp421 - 422

doi:10.1038/scientificamerican06051909-421a

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The Speed of the “Mauretania” - p423

doi:10.1038/scientificamerican06051909-423a

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Auroras: Some Recent Theories - p424

doi:10.1038/scientificamerican06051909-424

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Making the Eye of Science - p425

C. H. Claudy

doi:10.1038/scientificamerican06051909-425

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Excavations at Jericho, Palestine - p426

Harold J. Shepstone

doi:10.1038/scientificamerican06051909-426

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Handy Man's Workshop - p427

doi:10.1038/scientificamerican06051909-427

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A Simple Method of Measuring the Speed of Photographic Shutters - p427

doi:10.1038/scientificamerican06051909-427a

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A Substitute for Tinfoil in Leyden Jars - pp427 - 428

I. J. Kavanaugh, S. J.

doi:10.1038/scientificamerican06051909-427b

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Ways to Brace Poles for Private Telephone Lines - p428

Thaleon Blake

doi:10.1038/scientificamerican06051909-428

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The Driving of a Nail - p428

W. D. Graves

doi:10.1038/scientificamerican06051909-428a

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Scroll-Saw Guide - p428

W. Parkhurst and K. Parkhurst

doi:10.1038/scientificamerican06051909-428b

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Gage for Augers - p428

L. G. Handy

doi:10.1038/scientificamerican06051909-428c

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