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Features

The Platinum Market

Philadelphia, the Delaware River, and John Fitch

Palestine and Syria the Original Cereal Countries

Home-Grown Sugar-Beet Seed

Aeronautics

Science

Engineering

Stereoscopic Moving Pictures in Natural Colors

Erection of the Fades Viaduct

The Number of Our Ancestors and of Our Future Cousins

Why Do Main Springs Break?

The Pope and the Comet

Open-Air Orchard Heating in Colorado

By W. Frank M'clure

The Visiting Warships--A Comparison

A Novel Air Pump and Vacuum Gage

Thermostatic Regulator for Smoke Pipes

By B. A. Johns

How to Connect Stove Pipes

By H. G. L

Hot-Water Connection for Kitchen Boilers

By John B. Allen

Handy Man's Workshop

Simple Blue-Printing Frame

By C. L. Swezey

Circulating Pipe for Hot-Water Faucets

By J. A. Bergstrom

To Prevent Coal Gas

By L. G. Handy

The Boiler Maker's Tool Bag

By A. F. Bishop

A Muffler for Gas Engines

By Alfred P. Morgan

A Screen for the Register

By J. A. Brophy

Coating Roofs White to Repel Heat Rays

By A. J. Jarman

Departments

  • Departments

    Correspondence

  • Recently Patented Inventions

  • New Books, Etc.

  • Notes and Queries

  • Index of Inventions

  • Patents

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October 09, 1909

Think Outside the Gift Box