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The Menace to Europe

Model Tenements

Progress of the Telephone

The Patent Bill Defeated

How the Patent Bill Died

Safety at Sea

A Glass Mountain and Road

A Surprise to Millers

Mr. Robert G. Hatfield

American Industbies-No. 9

New Vertical French Burr Mills

Recent American Patents - March 22, 1879

New Testing Machine

Recent American Inventions - March 22, 1879

A New Honey Extractor

Some Anatomical Peculiarities in the Male Chimpanzee

The Praxinoscope

Engineering Inventions - March 22, 1879

A New Packing Box

Some Recent Inventions - March 22, 1879

The Giant Snapping Turtle

The Parasol Ants of Texas

Siemens' Electric Current Governor

Edison's Electric Light

New Electric Lamp

The Edison Electric Light

Righi's Telephone

The Mexican Industrial Exhibition

The Agricultural Exhibition in London

To Inventors - March 22, 1879

Communications Received - March 22, 1879


  • Departments

    Business and Personal - March 22, 1879

  • Notes and Queries - March 22, 1879

  • Index of Inventions - March 22, 1879

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March 22, 1879

Science for the Modern World