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A Submarine “Curtain of Fire”, Should Science Teaching Be Reformed and more?

Making of X-Ray Tubes in War Time

How the Unparalleled Demand for Tubes Was Met by French Manufacturers

By Jacques Boyer

Simple Food Tests

Experiments by Which Adulterants May be Detected

By S. Leonard Bastin

Strategic Moves of the War, January 13th, 1916

By Our Military Expert

The Pine Needle Oil Industry

How the Thrifty Europeans Utilize a Waste Product of the Lumbering Industries

By Samuel J. Record

Deriving Fat from Yeast, Waste Newspapers as a Fuel for Military Camps and more

By Our Berlin Correspondent


  • Letters

    Correspondence - January 22, 1916

  • Recommended

    New Books, Etc. - January 22, 1916

  • Departments

    The Motor-driven Commercial Vehicle - January 22, 1916

  • Recently Patented Inventions - January 22, 1916

  • Notes and Queries - January 22, 1916

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