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A Foolish Measure, New York Pier Problem Settled and more

Seeing Sound

Snap Shots of Waves Traveling at Seven Hundred and Fifty Miles Per Hour

The Slit Camera, Popular Ignorance About Our Common Woods and more

By Our Berlin Correspondent

The Art of Making Bronze Statues

From the Raw Clay to the Finished Figure

By C. E. Fairbanks

Parabolical Overhead Wiring for Electric Roads

By Owen M. de Munnick

A Comparison Microscope, The Mono-rail Sled and more

By Wilhelm Thoerner

The Evolution of Worlds

The Work of Sir George Howard Darwin

By John W. N. Sullivan

A $100,000 Prize for a Gasoline Substitute

By Stanley Petman

The Current Supplement


  • Recently Patented Inventions

  • Departments

    Inventions New and Interesting - February 15, 1913

  • Notes and Queries - February 15, 1913

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