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The Races in the United States

Painting with Metal Spray

How Protective Coatings are Shot into Place Under the Latest Procedure

By Robert G. Skerrett

Self-Propelled Steel Barges for the State Barge Canal, A Few Facts and a Little Fancy

Housework in the Laboratory

What the Government Tests Have Revealed Regarding the Energy Expended by the Housewife in Her Daily Work

By S. R. Winters

Simplifying the Coupling of Trains, Sucking the Cargo Out of a Ship

Winning Foreign Film Markets

How the American Motion Picture Industry is Acquiring a Firm Footing in Other Lands

By O. R. Geyer

Soap Science

Recent Developments in the German Industry

By Arthur H. J. Keane

Doing away with the Ice Man

How Electricity has brought a Cleaner, Drier and Colder Atmosphere to the Refrigerator

By Albert A. Hopkins

Starrett Combination Squares Graduated with Metric Measure Now Available, Improved Universal Bevel Protractor Added to Starrett Line

Cement for Leather Driving Belts


  • Departments


  • The Service of the Chemist

  • The Motor-Driven Commercial Vehicle

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