Table of contents


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Departments

Correspondence

Correspondence p222

doi:10.1038/scientificamerican03201909-222a


Recently Patented Inventions

Recently Patented Inventions p230

doi:10.1038/scientificamerican03201909-230


Notes and Queries

Notes and Queries pp230 - 231

doi:10.1038/scientificamerican03201909-230a


Books

New Books, Etc. p231

doi:10.1038/scientificamerican03201909-231


Patent Notes

Patents p231

doi:10.1038/scientificamerican03201909-231a


Index

Index of Inventions pp231 - 235

doi:10.1038/scientificamerican03201909-231b


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Articles

The Menace of the Noiseless Gun p218

doi:10.1038/scientificamerican03201909-218


Opportunity for American Steel Construction at Messina p218

doi:10.1038/scientificamerican03201909-218a


The Subway Situation p218

doi:10.1038/scientificamerican03201909-218b


Limitations of the Hydroplane p218

doi:10.1038/scientificamerican03201909-218c


Aviation in America and the Scientific American Trophy p218

doi:10.1038/scientificamerican03201909-218d


Engineering p219

doi:10.1038/scientificamerican03201909-219


Electricity p219

doi:10.1038/scientificamerican03201909-219a


Science p219

doi:10.1038/scientificamerican03201909-219b


Improved Forms of the Buggy-Type Automobile pp220 - 221

doi:10.1038/scientificamerican03201909-220


The Schneider Torpedo-Launching Station p222

doi:10.1038/scientificamerican03201909-222


Accuracy in Scientific Diction p222

doi:10.1038/scientificamerican03201909-222b


From the Track-Walker's Standpoint pp222 - 223

doi:10.1038/scientificamerican03201909-222c


The Locust Tree: An Important Field for Investigation p223

doi:10.1038/scientificamerican03201909-223


What is the Selden Patent? pp223 - 225

Charles B. Haywood

doi:10.1038/scientificamerican03201909-223a


First Aid to Those Injured by Electricity p225

doi:10.1038/scientificamerican03201909-225


Progress of the 20,000-Ton “North Dakota” p226

doi:10.1038/scientificamerican03201909-226


Handy Man's Workshop pp227 - 228

doi:10.1038/scientificamerican03201909-227


An Interesting Experiment and Its Explanation p228

Alfred P. Morgan

doi:10.1038/scientificamerican03201909-228


Home-Made Spring Winder p228

J. O. Brouillet

doi:10.1038/scientificamerican03201909-228a


Forging a Masthead or Boom Ring p228

I. G. Bayley

doi:10.1038/scientificamerican03201909-228b


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