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Features

Balloon Making

Concrete Building

Application of Photography to Astronomy

Foster's India-Rubber Decoy Duck

The Holstein Intermaritime Canal

Early Attempts for Direct Intermaritime Communication

“The Welcome Stranger” Nugget, Found Near Dunolly, in Australia

The Peach Tree Insect

Difficulties to be Surmounted in Working the Suez Canal

The Contraction or Shrinking of Timber

The Manufacture of Sulphuric Acid

From the Report of J. Lawrence Smith, United States Commissioner to Paris Exposition.

The Relation of Mechanism to Art

By W. L. Ormsby Jr.

Improvement in Open Fire Grates

Facts About the Croton Water Supply

The Exhibition of the American Institute

Circular Motion and Rectilinear Motion

Interesting Patent Decision When Does an English Patent Take Date?

Osborn's New Treatise on the Metallurgy of Iron and Steel

Steam Power on Canals

New Publications

An Essay Upon Force in Nature and its Effects Upon Matter. Cincinnati: Robert Clarke&Co., Publishers.

Recent Americans and Foreign Patents

Under this heading we shall p ublish weekly notes oj some of the more prominent home and foreign patents.

Manufacturing, Mining, and Railroad Items

Official List of Patents

Answers to Correspondents

Great Value of Patents

Patent Office Decision Respecting Designs Application Of Franklin Field for a Patent for a Design for Paper Collars

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