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The Panama Canal

Bismarck Bridge over the Missouri River and Northern Pacific Railway

Poor Economy

How to make Concrete Walls

The German Corvette Prince Adalbert

Imitation of the Phenomena of Electricity and Magnetism by Liquid or Gaseous Currents

The New City Hall, Vienna

Scamoni's Electrotype Method of Reproducing Photo-Reliefs

Equivalents of Metals by means of their Sulphates

By H. Baubigny

A New Residual Product from the Distillation of Coal

By George E. Davis

Sewer Gas and its Dangers

By G. W. Mccaskey

The Estimation of Sulphur in Coal Gas

Demerara Greenheart

Entomology and Medical Science


Irrigation in California

Obscured Glass for Vineries

The Ice of Greenland and the Antarctic

Our Animal Enemies and Allies Reconsidered


  • Departments

    Patents - January 5, 1884

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