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Features

The Open Door of Aviation, The Scientific American Aeronautical Trophy, the International Union for Co-operation in Solar Research

Engineering, Electricity, Science

Modern Steel Lock Bar Pipe Construction

By Frank C. Perkins

The Wearing Qualities of Manganese Steel

By J. F. Springer

The Contagious Diseases of Metals

The Researches of Prof. Ernest Cohen

Independence Day Casualties

By John B. Huber

The Aviation Meet at in Dianapolis, Wanted Information About Dishonest Patent Schemes

An English Judicial Opinion of Complex Patents

The German Dreadnought Nassau

The First of the German Fleet of Dreadnoughts to be Completed

Hamilton's Round-Trip Aeroplane Flight from New York to Philadelphia

A Remarkable Cross-Country Flight

New Filtered Water Supply for the City of Pittsburgh

How the Allegheny River Water is Purified and Delivered into the City Mains

Construction of a Simple Electrolytic Interrupter

By George F. Worts

Wandering Chemicals

By Gustave Michaud

Geissler Tubes from Electric Light Bulbs

By James Bailey

Device for Testing Electric Wiring

By Howard M. Nichols

An Electroplating Outfit

With Practical Working Formulae

By A. J. Jarman

Polariscope Attachment for Microscopes

Emery

By Walter C. Gold

Departments

  • Letters

    Correspondence- June 25, 1910

  • Recommended

    New Books, Etc.- June 25, 1910

  • Departments

    Recently Patented Inventions- June 25, 1910

  • Notes and Queries- June 25, 1910

  • Index of Inventions- June 25, 1910

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June 25, 1910

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