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Scientific American Magazine Vol 102 Issue 20

Scientific American Magazine

Volume 102, Issue 20

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Features

New Quebec Bridge Design, Fuel Economy and our Natural Resources, Does Radium Exist in the Pure State

Engineering, Electricity, Science- May 14, 1910

The Porhydrometer--An Apparatus for Weighing Ship Cargoes

The New Eiffel Photographic Heliograph, Cardin Process of Photo-Sculpture

Jacques Boyer

Halley's Comet in the Evening Sky

Henet Norris Russell

Wireless Telegraph Apparatus for Contestants of the Glidden Tour

Ren Homer

Two Novel Motor Sleds

Walter Langford

The Flight from London to Manchester

The Aviators' Own Accounts

How to Build a Houseboat for $300

Frederick K. Lord

An Industrial Laboratory for the Improvement of the Incandescent Lamp, Scientific Cider Making, and more

Departments

Recently Patented Inventions- May 14, 1910

Notes and Queries- May 14, 1910

New Books, Etc.- May 14, 1910

Index of Inventions- May 14, 1910