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The Neglected Water Power of New England, Trench Mortality, and more

Contains an editorial on statistics about trench mortality.

Electricity- August 25, 1917

Science- August 25, 1917

Industrial Efficiency- August 25, 1917

Gas Engine Drive for Submerged Submarines

A California Experiment Which Aims To Supplant the Storage Battery

By E. C. Crossman

Canning Tomatoes in California

What the Professional Canner Is Doing to Preserve Perishable Vegetables

By Arthur L. Dahl

A Week's Review of the War, August 16th, 1917

By Our Military Expert

The War of Specialists--The Machine Gunner

How the Machine Gun Has Influenced Modern Military Tactics

By Louis Keene

Starch in Santo Domingo


  • Letters

    Correspondence- August 25, 1917

  • Departments

    Inventions New and Interesting- August 25, 1917

  • Recently Patented Inventions- August 25, 1917

  • Foreign Commercial Notes and Queries- August 25, 1917

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