Table of contents


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Departments

Correspondence

Correspondence p99

doi:10.1038/scientificamerican01301909-99


The Heavens

The Heavens in February pp102 - 103

Henry Norris Russell, Ph. D.

doi:10.1038/scientificamerican01301909-102


Recently Patented Inventions

Recently Patented Inventions p105

doi:10.1038/scientificamerican01301909-105


Patent Notes

Patents p105

doi:10.1038/scientificamerican01301909-105a


Index

Index of Inventions pp105 - 107

doi:10.1038/scientificamerican01301909-105b


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Articles

The Gatun Dam Misrepresentations p94

doi:10.1038/scientificamerican01301909-94


The Ninth Annual Automobile Show in Madison Square Garden p94

doi:10.1038/scientificamerican01301909-94a


The Labor Involved in Liquefying Helium p94

doi:10.1038/scientificamerican01301909-94b


Engineering p95

doi:10.1038/scientificamerican01301909-95


Electricity p95

doi:10.1038/scientificamerican01301909-95a


Science p95

doi:10.1038/scientificamerican01301909-95b


The British Army Aeroplane p96

doi:10.1038/scientificamerican01301909-96


Aeronautical Notes p96

doi:10.1038/scientificamerican01301909-96a


Taximeter Frauds pp97 - 98

Roger B. Whitman

doi:10.1038/scientificamerican01301909-97


Clay Products of the United States pp98 - 99

doi:10.1038/scientificamerican01301909-98


Automatic Block Signals p99

doi:10.1038/scientificamerican01301909-99a


The Meat Industry of America—II pp99 - 102

doi:10.1038/scientificamerican01301909-99b


Some Breads of Other Lands p103

L. Lodian

doi:10.1038/scientificamerican01301909-103


Milk-Bottle Holder p104

doi:10.1038/scientificamerican01301909-104


Device for Testing Eggs p104

doi:10.1038/scientificamerican01301909-104a


Flowing Oil Wells by Compressed Air p104

doi:10.1038/scientificamerican01301909-104b


Finger-Developing Device p104

doi:10.1038/scientificamerican01301909-104c


Vehicle Wheel Sled Runner p104

doi:10.1038/scientificamerican01301909-104d


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