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Opening of the Paris Exposition

A Tour of the Exposition

Portable Pneumatic Tools

By Ewart C. Amos

Steam Engines of 3,000 Horse Power


Selected Formulæ

Trade Notes and Receipts

Trade Suggestions from United States Consuls

Concentrated Perfumes

Pneumatic Malting


The Splügen Tunnel

Liquid Hydrogen

The Cochot Motor-Vehicles

The Relations between Electricity and Engineering

The Automatic Optician

Maccaroni Manufacture in Italy

The means of Defense of Animals



  • Departments

    The Shrinkage of Lake Nicaragua

  • New Books, Etc.

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