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Features

The Heart as a Pumping Engine

By Charles Nevers Holmes

A Strong Navy, Einstein's Finite Universe and more

The Falsework for a Big Dam

Some Unusual Trestles Employed in This Department of Concrete Construction

By J. F. Springer

A Measure of Interior Lighting

By S. R. Winters

Making Electric Insulators of Porcelain

By Ralph Howard

Brief Facts About Money

With a Suggestion for Making It Better Able to Perform Its Work

By Charles E. Duryea

Who Shall Work the Farms?--II

The Extent to Which the Labor Shortage Persists, and the Measures of Relief Available

By George H. Dacy

Solving the Labor Problem--IV

Home Comforts and the Community Spirit as a Remedy for Heavy Labor Turn-Over

Stray Current Electrolysis

Departments

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    The Service of the Chemist

  • Inventions New and Interesting

  • New Books, etc.

  • Notes and Queries

  • Recently Patented Inventions

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March 1921

Think Outside the Gift Box