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Mysteries of Matter

Some of the Marvels of the Properties and Constitution of the Atom

By John Candee Dean

The Distortion of Iron Casting


Latent Heat of Fusion of Ice

Modern Science and War Surgery

Artificial Sun Baths and Electric H eating of the Body


Engineering Education Faults

Co-Operation in Foreign Trade

Existing Commercial Conditions, and Problems That Confront the American Exporter

By Hon. Joseph E. Davies

Emulsions and Emulsification

A Novel Construction for Gas Holders

Protective Coating for small Articles

Kapok—A New Textile Fibre

Its Manufacture and Industrial Applications

By Jacques Boyer

Imitation as Pioneer of the Genuine

The Locomotive and the Revolutionist

A Discussion of Some Suggested Improvements

Aiming with the Rifle

Some of the Difficulties Encountered, and How they may be Overcome

By Edwin Edser

English Measures of Length

The History of Their Origin and Development

By Charles M. Watson

The Medical needs of Modern Armies

Planting Trees with Dynamite

Battery versus Magneto Ignition

By Frank Conrad


  • Letters

    Correspondence - February 19, 1916

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