Scientific American Magazine Vol 103 Issue 27

Scientific American Magazine

Volume 103, Issue 27

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Features

The Greater "Scientific American", Retrospect of the Year 1910

New Aeroplane Duration and Distance Records

SOME OF THE RECORD BREAKING FLIGHTS ACCOMPLISHED BEFORE THE END OF THE YEAR

Work on St. Martin Canal, Paris

The Secretary Bird

Walter L. Beasley

A Portable Collapsible Mast

AN INGENIOUS DEVICE FOR MANY USES

A Substitute for a Telescope Driving Clock

Frederic R. Honey

Electrical Projection Experiments.—III

Sydney Whetmore Ashe

Metallo-Chromes

W. J. C

A Photographic Telescope

Norman Barden

A Cheap Hydro-Comparator

George N. Wilcox

The Overestimated Antiseptic Power of Vinegar

Departments

Index of Inventions- December 31, 1910

Recently Patented Inventions- December 31, 1910

Notes and Queries- December 31, 1910

Index- December 31, 1910