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How Much Water do we Drink in the United States?, Scientific American Monthly for May and more

Piercing the Catskills for Water

Some Constructional Details of the 18-Mile Tunnel Under the Shandaken Mountains

By Robert G. Skerrett

Making a River Pump its Water Uphill, Talking to Thousands by Electrifying and Amplifying the Speaker's Voice

By Ralph Howard

To Offset the High Cost of Ice

By W. Lambert

A Merlin of Today

What the Audion of De Forest has Done and What it May Yet Do

By C. H. Claudy

Hoboes of Industry

How the Picturesque Wanderer of Yesterday has been Replaced by the Present Floating Labor

By H. A. Mount

Making Bad Land Good

Land Reclamation the Next Step in the Fight to Feed the World

By H. A. Crafts

Our Share of the German Fleet

Five Ships that Fought at Jutland are on Their Way to the United States

The Architecture of the Atom

Some of the Details of the Langmuir Postulates as to the Atoms

By Oscar R. Foster


  • Departments

    The Service of the Chemist - May 15, 1920

  • The Motor-Driven Commercial Vehicle - May 15, 1920

  • Recently Patented Inventions - May 15, 1920

  • New Books, Etc. - May 15, 1920

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