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Air Target Pistol, Improved Peat Machine

What is Energy?

Meat Preserving in Melbourne, Australia

The Cockchafer and its Ravages

By Edward C. H. Day

Kemlo's Spring-Lock Fishhooks

Italian Maritime Exposition

A New Spring at Saratoga

New York Lyceum of Natural History

Improved Shovel Handle

The Impact of Bodies

The Problem of City Transit

Deterioration of Coal by Exposure to the Air

The Use of Wire Rope in Civil and Mechanical Engineering

Patent Office Affairs- June 4, 1870

Applications for Extension of Patents- June 4, 1870

Beet Root Sugar in The United States

Answers to Correspondents- June 4, 1870

Recent American and Foreign Patents- June 4, 1870

Official List of Patents- June 4, 1870


  • Letters

    Correspondence- June 4, 1870

  • Departments

    Business and Personal- June 4, 1870

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