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Features

A Labor Storm-Center

More Innocent Buyers Needing Protection

Fire Risks with Electric Lamps

The Decline of Schooling

Accuracy in Telegraphing

The Absorption of Metallic Oxides by Plants

Why Beef is Dear

Detachable Umbrella and Parasol Covers

A New Sun Dial

Transmission of Motive Power by Rarefied Air

Henri Giffard

Progress of the East River Bridge

Rules in the Cutting of Uppers

By a Practical Workman

The Direct Transfusion of Blood

The Steamship Austral

The American Tunny

By C. F. Holder

New Form of Bridge Supports

Miscellaneous Inventions

Engineering Inventions

Textile Invention

Agricultural Inventions

Mechanical Inventions

Departments

  • Departments

    Correspondence

  • Recent Inventions

  • New Books and Publications

  • Business and Personal

  • Index of Inventions

  • Notes and Queries

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August 05, 1882

Confronting Common Wisdom