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How Long Must We Suffer Our Engineering Department at Present the Creature of Party Politics

Corrosion of Steam Boilers

New Method of Gold Extraction from Pyrites Used in Italy

Borax, and Food

An Apparatus for Preventing Seasickness

By Alfred Gradenwitz

A Novel Air Compressor

The Plans for the New Manhattan Bridge

The New White Star Liner "Baltic" --the Largest Vessel in the World

By the English Correspondent of the Scientific American

Lensless Photography

By N. R. Briggs

Cascades and Colonnade of States at the Exposition

By the St. Lousis Correspondent of the Scientific American

The New Australian Patent Act

A Compensating Windmill

Voting Machine

Grain Lifter for Headers

Ventilated Eye-Shade

Improved Gage

Hose or Pipe Coupling

Chain Clamp

Business and Personal Wants

Departments

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    Correspondence - July 16, 1904

  • Recently Patented Inventions - July 16, 1904

  • Notes and Queries - July 16, 1904

  • New Books, Etc. - July 16, 1904

  • Index of Inventions - July 16, 1904

  • Patents - July 16, 1904

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July 16, 1904

Reanimate Your Brain

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