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Docking Zeppelins, Potash in Texas, and more

By C. Dienstbach

New Apparatus for Internal Diagnosis, Military Use of Sabadilla in the Manufacture of Tear-Producing Gases

By Jacques Boyer

Spanish Moss

The Source of a Valuable Upholstering Material

By Samuel J. Record

Strategic Moves of the War, July 7th, 1916

By Our Military Expert
[Article talks about the strategy behind the attack by British and French forces in the valley of the Somme river]

Remarkable Underpinning Work

How the Foundations Are Safely Dug out from Underneath Large Buildings

Facing Hazards for the Sake of Precision

Hardships Undergone and Results Achieved in Surveying for the Federal Government

By Robert G. Skerrett

Mediaeval Machinery

How the Germans of the Seventeenth Century Tried to Solve an Age-old Problem

Measuring the Dust in the Air

New Types or Apparatus for the Measurement of Pollution of City Atmospheres

By John B. C. Kershaw


  • Departments

    Correspondence-July 15, 1916

  • The Motor-driven Commercial Vehicle - July 15, 1916

  • Recently Patented Inventions-July 15, 1916

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