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Will the Tungsten Lamp Raise Rates? The Bunsen Centenary and more

Combating the Sleeping Sickness

The Tasteful Use of Light

Color in Artificial Illumination

By Louis C. Tiffany

Light and Shadows

Ministering to Eye Comfort by Modern Methods

By E. C. Crittenden

Good Coal and Poor

Purchase of Coal on the Basis of Its Heating Value

By J. A. Holmes

Drawing the Charge--Our Cover Design, The Adoption of Greenwich Standard Time in France

Heating the Home

Methods of Providing Warmth with Proper Ventilation

By James F. Martine

Lamps of To-day

Some Recent Improvements in Artificial Light Sources

By Joseph B. Baker

Light and Power on the Farm

Independent Electric Generating Plants

By Putnam A. Bates

Inventing the Light of the Future

The Eye as the Ultimate Judge

Science in the Current Periodicals - April 15, 1911

In this Department the Reader will find Brief Abstracts of Interesting Articles Appearing in Contemporary Periodicals at Home and Abroad

The Inventor's Department - April 15, 1911

Simple Patent Law; Patent Office News; Inventions New and Interesting

The Current Supplement, Tipping the Shores of Hudson Bay


  • Letters

    Correspendence - April 15, 1911

  • Departments

    Recently Patented Inventions - April 15, 1911

  • Notes and Queries - April 15, 1911

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