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A Peruvian Infernal Machine

Electric Light for Marine Use

Color Blindness in Connecticut

Effect of Starvation on the Blood

Influx the Source of Invention

Artificial Citric Acid

A Good Year for Statistics

Mechanical Inventions

Fire in a Pennsylvania Coal Mine

Clutch for Bow Strings

New Coupler

A Lens With Variable Focus

Yellow and Red Phosphorus in the Manufacture of Matches

By E. Eichler

Miscellaneous Inventions

Improved Book-Rack

A Substitute for the Crank

New Air Gun

The Steamer Pittsburg

The Glycerine Barometer

Taguan Flying Squirrel

Clothing in its Relation to Health

Engineering Inventions

Facts About Cheese

Artificial Cold

Communications Received


  • Departments

    New Inventions

  • Recent Inventions

  • New Books and Publications

  • Notes and Queries

  • Business and personal

  • Index of Inventions

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August 28, 1880

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