Scientific American Magazine Vol 98 Issue 20

Scientific American Magazine

Volume 98, Issue 20

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Features

Investigations for the Gatun Dam

To Secure Better Rails

A Heat Flywheel

Former Chief Engineer Stevens on the Canal

Copper-Clad Steel

The Wright Aeroplane Experiments

Machine for Making Window Glass

Metchnikoff's Theory of Longevity

The Current Supplement

Motors for Viticulture

The “Caterpillar” Tractor

By the English Correspondent of the Scientific American

Range and Position Finders for Coast Artillery Fire Control

The Annular Eclipse of the Sun in June, 1908

Frederic R. Honey

A Magazine for the Blind

How Cave Air is Used to Regulate the Temperature of a House

C. H. Claudy

A French Universal System of Machine Molding

Frank C. Perkins

A New Electric Renovator

Hose Nozzle with Movable Spray Cap

Folding Step Ladder

Improved Switchboard Plug

Folding Washing Machine for Stationary Tubs

Patent Department

Rail Lock and Tie Plate

Departments

Correspondence - May 16, 1908

Notes and Queries - May 16, 1908

Recently Patented Inventions - May 16, 1908

Index of Inventions - May 16, 1908

New Books, Etc. - May 16, 1908

Patents - May 16, 1908