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Our Stupendous Railway System

Return of the Wright Brothers

Comparative Tests of the Scout Cruisers

A Long-Delayed Tribute




A New Color-Photography Process

"Description of a New Camera for Taking and Projecting Photographs in Natural Colors"

Cork-Lined Fabric--A Textile Novelty

By The Paris Correspondent of the Scientific American

The Most Powerful Locomotives Ever Built

The Lunar and Solar Eclipses in June, 1909

By Frederic R. Honey

The Palace of Mirages

By Jacques Boyer

The New German Photography

The Excavations at Delphi

Some Striking Discoveries Made

By M. Homolle

Goblets of Ice

Handy Man's Workshop

Tools for the Workshop--II

By I. G. Bayley

A Tantalum Detector

By Alfred P. Morgan

Holder for Grinders

By O. D. Carter

Method of Patching a Boiler

By John W. E. Laker

Pencil Sharpener

By Joseph N. Parker

Thread Cutting without a Die

By J. A. Bergstrom

Putting on a New Clutch Leather

Coppering Flowers without Wax

By Arthur E. Hagarty

Blue-Print Washer

By W. J. C.

A Simple Method of Constructing a Handle

By W. C. M'Kenzie


  • Notes and Queries - May 15, 1909

  • Departments

    Correspondence - May 15, 1909

  • Recently Patented Inventions - May 15, 1909

  • New Books, Etc. - May 15, 1909

  • Index of Inventions - May 15, 1909

  • Patents - May 15, 1909

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May 15, 1909

20% Sitewide for President's Day