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The Grand Prize Diploma of the French Exhibition

Shall We Have a Canal or Ship Railway?

The Reflecting Magic Lantern in Court

The Opening of the Mississippi

The Cincinnati Industrial Exhibition

Progress in Spectroscopy

Where to Study Chemistry in Germany

An Improved Potato Digger

The Polar Pantograph

Combined Fork and Spoon

Recent Mechanical Inventions

The Sun a Source of Power

By S. P. Langley

A Ship Railway at Panama

Spar Torpedo Vessel Acheron

New Thrashing Machine

Portable Flour Mill

Natural History Notes


The Phylloxera in France

New Bubble Blower

Future of American Engineering


  • Departments

    Index of Inventions

  • Business and Personal

  • New Books and Publications

  • Notes and Queries

  • Patents

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August 02, 1879

20% Sitewide for President's Day