Table of contents


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Departments

Correspondence

Correspondence p263

doi:10.1038/scientificamerican04031909-263


The Heavens

The Heavens in April p266

Henry Norris Russell, Ph.D

doi:10.1038/scientificamerican04031909-266


Recently Patented Inventions

Recently Patented Inventions p268

doi:10.1038/scientificamerican04031909-268


Notes and Queries

Notes and Queries p268

doi:10.1038/scientificamerican04031909-268a


Patent Notes

Patents p268

doi:10.1038/scientificamerican04031909-268b


Index

Index of Inventions pp268 - 271

doi:10.1038/scientificamerican04031909-268c


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Articles

Lieut. Shackleton's Antarctic Expedition p258

doi:10.1038/scientificamerican04031909-258


To Test Full-Sized Compression Members p258

doi:10.1038/scientificamerican04031909-258a


The So-Called “Dreadnought” Craze p258

doi:10.1038/scientificamerican04031909-258b


Engineering p259

doi:10.1038/scientificamerican04031909-259


Electricity p259

doi:10.1038/scientificamerican04031909-259a


Science p259

doi:10.1038/scientificamerican04031909-259b


An Enormous Induction Coil pp260 - 261

Charles B. Hayward

doi:10.1038/scientificamerican04031909-260


Floating Lights of Inland Waters pp261 - 262

doi:10.1038/scientificamerican04031909-261


Aerial Defense Artillery p262

doi:10.1038/scientificamerican04031909-262


End Versus Center Doors for Exit on Subway Cars p263

doi:10.1038/scientificamerican04031909-263a


Seaworthiness of Passenger Steamships p263

doi:10.1038/scientificamerican04031909-263b


Defects in Motor-Sleighs p263

doi:10.1038/scientificamerican04031909-263c


Our New 26,000-Ton Battleships pp263 - 265

doi:10.1038/scientificamerican04031909-263d


Regrading a City by Means of Hydraulic Sluicing p265

J. Mayne Baltimore

doi:10.1038/scientificamerican04031909-265


Handy Man's Workshop p267

I. G. Bayley

doi:10.1038/scientificamerican04031909-267


The Handy Man in the Factory p267

K. R. Henry

doi:10.1038/scientificamerican04031909-267a


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