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Government Valuation of Railroads, A Word of Warning and more

A Floating Pneumatic Elevating and Grain Discharging Plant

By Frederick C. Coleman

Purifying Water by the Action of Ultra-violet Light

By M. von Recklinghausen

Shooting at Moving Pictures

Wireless and Sound Signals as Aids to Navigation, The Competition for the New York, New Haven and Hartford Railroad Company's Automatic Stop and more

By Louis E. Browne

A Machine for Blowing Window Glass

The Remarkable Sievert Process

Do Animals See Things as We Do?, The Longest Aeroplane Flight and more

By J. Fidel Tristan

An Automatic Electric Light Plant

By F. C. Coleman

Price Maintenance and Modern Merchandising--III

Price Protection Distinguished from Trust Control

By Louis D. Brandeis

The Current Supplement, A Method to Prevent Tarnishing of Silver


  • Departments

    Inventions New and Interesting - July 19, 1913

  • Notes and Queries - July 19, 1913

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