Scientific American Magazine Vol 100 Issue 24

Scientific American Magazine

Volume 100, Issue 24

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Features

The Waste of Our Natural Resources

Fewer Broken Rails

A New Fire-Alarm System for New York

Science

Electricity

Belin's Improved Apparatus for the Electrical Transmission of Pictures

Jacques Boyer

Is the Earth's Shape Changing

J. F Springer

Impressions of American Inventors.--II

Experiments with Hydroplanes or Skimmers

By the English Correspondent of the Scientific American

Artificial Rubies

Victor Barton

An Automobile Trolley-Repair Truck

Alfred Gradenwitz

A Simple Medical Coil

Frederick E. Ward

Handy Man's Workshop

Departments

Index of Inventions

Recently Patented Inventions

Notes and Queries

New Books, Etc.

Patents