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The Proposed New Patent Office Building, Modern Argonauts of Science and more

Salt-rising Bread

Raising Dough With Newly Discovered Bacteria

By H. A. Kohman

A New Method of Educating Deaf Mutes

By Jacques Boyer

Left Side Steer and Center Control in Motor Cars

By Howard Greene

Guns for Submarines

A Weapon That Swings Below Decks During Submergence

By Alfred Gradenwitz

The Tallest Office Building in the World

Erection of the Woolworth Building, New York

In the World of Molecules, Optical Illusions; Trust not Your Eye and more

By Alfred J. Lotka

What is Matter?

The Individual Molecule Revealed

An Automatic Sharpener on an Electric Meat Slicer, An Engine that will Run on Several Fuels and more

By Frank C. Perkins

Chemical Balance and the Fire Waste Problem

By Sidney G. Koon


  • Letters

    Correspondence - March 8, 1913

  • Recommended

    New Books, Etc. - March 8, 1913

  • Departments

    Inventions New and Interesting - March 8, 1913

  • Recently Patented Inventions - March 8, 1913

  • Notes and Queries - March 8, 1913

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