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Wanted--A Chief for the Bureau of Chemistry, Interference and Aeroplane Disasters and more

From Clay to Bronze

The Craftsman's Part in the art of Sculpture

By C. H. Claudy

A New Form of Underwater Attack

A Torpedo that Carries a Gun

By Robert G. Skerrett

Quirigua--An American Town 1,400 Years Old

Glimpses of an Extinct American Civilization

By Sylvanus Griswold Morley

The Increasing Temperature of the World

The Business Aspect of Synthetic Rubber

What are the Prospects of the New Discovery?

By F. W. Hinrichsen

Curiosities of Science and Invention

The Trade-mark as a Business Asset

By W. E. Woodward

VI.--Shall My Boy Become an Industrial Chemist?

Purdue University

By H. C. Peffer

New System of Electrically-heated Hot Water Supply, A Polar Drift a la Nansen


  • Letters

    Correspondence - August 3, 1912

  • Recommended

    New Books, Etc. - August 3, 1912

  • Departments

    The Heavens in August 1912

  • Inventions New and Interesting - August 3, 1912

  • Recently Patented Inventions - August 3, 1912

  • Notes and Queries - August 3, 1912

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