The Completion of the North River Tunnel - p226

doi:10.1038/scientificamerican03191904-226

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Direct-Current Traction on the New York Central - p226

doi:10.1038/scientificamerican03191904-226a

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The Motive Power for High-Pressure Fire Service - pp226 - 227

doi:10.1038/scientificamerican03191904-226b

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The British Naval Programme for 1904 - p227

doi:10.1038/scientificamerican03191904-227

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Science Notes - p227

doi:10.1038/scientificamerican03191904-227a

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A Double-Deck Car for Rapid Transit - p228

doi:10.1038/scientificamerican03191904-228

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De Glehn Compound for the Great Western Railway, England - pp228 - 229

doi:10.1038/scientificamerican03191904-228a

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New Pruning Shears - p229

doi:10.1038/scientificamerican03191904-229

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An Improved Grain Valve - p229

doi:10.1038/scientificamerican03191904-229a

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Steam Turbine of 11,000 Horse-Power - pp229 - 230

doi:10.1038/scientificamerican03191904-229b

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Experiments upon the Pressure of Wind at the Eiffel Tower - p230

Emile Guarini

doi:10.1038/scientificamerican03191904-230

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Thawing Out Frozen Water Pipes by Electricity from Storage Batteries - p231

doi:10.1038/scientificamerican03191904-231a

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Electricity in the Household - p232

doi:10.1038/scientificamerican03191904-232

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Our Knowledge of the Moon - pp232 - 234

doi:10.1038/scientificamerican03191904-232a

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The Japanese Sword Exercise.—I - pp235 - 236

G. H. Tilden

doi:10.1038/scientificamerican03191904-235

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The Cahokia and Surrounding Mound Groups - p236

D. I. Bushnell, Jr.

doi:10.1038/scientificamerican03191904-236

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