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Features

Concrete Building

Balloon Making

Application of Photography to Astronomy

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

Foster's India-Rubber Decoy Duck

Difficulties to be Surmounted in Working the Suez Canal

The Peach Tree Insect

The Holstein Intermaritime Canal

Early Attempts for Direct Intermaritime Communication

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?

Steam Power on Canals

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

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

New Publications

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

Official List of Patents

Answers to Correspondents

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

Great Value of Patents

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