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Present Railroad Track Inefficient

The Need for Federal Quarantine Control

Filtration and the Future Water Supply for New York City

Evolution of the Tow Barge

By John R. Spears

How Clinical Thermometers are Standardized and Tested

By Herbert T. Wade

The "Elbert H. Gary"—The Greatest of Ore-Carrying Steamers

By W. Frank M'clure

Stratification in Vacuo: Its Production with the Influence Machine

By Howard B. Dailey

Aftermath of Port Arthur

The Santos-Dumont "No. 14"

A Hundred Ways of Breaking Your Neck

Valve for Oil Wells

Air Pumps for Experimental Purposes

By W. P. White

Business and Personal Wants

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    Recently Patented Inventions - October 14, 1905

  • Notes and Queries - October 14, 1905

  • Index of Inventions - October 14, 1905

  • Patents - October 14, 1905

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