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Features

“Consigned to the Scrap Heap”

The George Washington University

By N. Monroe Hopkins

Casualties--Military and Civil

Electric Railways and Population

The Current Supplement

Cables that Withstand 90,000 Volts

The Progress of Aviation Since 1891

A Simple Rim for Detachable Tires

A Swimming School for Cavalry Horses

By W. G. Fitz Gerald

A Home-Made Wireless Signaling Transmitter

By A. Frederick Collins

Salt Making on San Francisco Bay

By Enos Brown

The Barossa Dam, Southern Australia

By Emile Guarini

The New Blackwell's Island Bridge

An Ink-Controlled Fountain Drawing and Writing Pen

Rail-Joint Connection

Patent Department

Hose Coupling

Lineman's Support

Oddities in Invention

The New Trade Mark Law

Railway Gage

Business and Personal Wants

Departments

  • Departments

    The Heavens in April - April 1, 1905

  • Correspondence - April 1, 1905

  • Recently Patented Inventions - April 1, 1905

  • Notes and Queries - April 1, 1905

  • Index of Inventions - April 1, 1905

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April 01, 1905

See the World from a Different Perspective

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