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Important Speed Tests of Steam and Electric Trains

The Collapse of the Campanile--The Cause

Fuel Oil in the Merchant Marine

Protecting Our Wild Animals

By George Ethelbert Walsh

Science Notes

Paris Metropolitan Railroad--New Systems

By Paris Correspondent of the Scientific American

Modern Pile Drivers

By Waldon Fawcett

Electric Call

Some New Detectors for Wireless Telegraphy

By A. Frederick Collins

The Manufacture of Tin Plate--I

The Manufacture of the New Fireproof Material Uralite

By the London Correspondent of the Scientific American

Stevens' Airship

Prehistoric Mexican Sign Writing

By John G. Rothermel

The Truffault Racer

Business and Personal Wants


  • Departments

    Correspondence - October 4, 1902

  • Index of Inventions - October 4, 1902

  • Recently Patented Inventions - October 4, 1902

  • New Books, Etc. - October 4, 1902

  • Notes and Queries - October 4, 1902

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