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Sir John Herschel

Instrument for Parting Ladies' Hair

A Self-Moving Ship

Philippi's Improved Drill Chuck

Odiorne's Improvement in Seals for Hydraulic Mains of Gas Works

Improvement in Riveting Tools

Improved Self-Measuring Faucet

Rand's Improved Saw Arbor

Effect of Corporation Employment on Work-Men

Lightning Rods

Joseph Henry and the Electric Telegraph

Extracting Gold from Washings and Poor Ores

Scientific Intelligence- July 1, 1871

Massachusetts Shoemakers on the Taxes

Colossal Bronze Bust of Washington Irving

The Kelly Patent Extension Case.--Address of Hon. S. S. Fisher.--Competitive Examinations.-- Female Applicants for Clerkships in the Patent Office

Queries- July 1, 1871

Narrow Gages for Railways

Answers to Correspondents- July 1, 1871

Applications for Extension of Patents- July 1, 1871

Recent American and Foreign Patents- July 1, 1871

Official List of Patents- July 1, 1871


  • Letters

    Correspondence- July 1, 1871

  • Recommended

    New Books and Publications- July 1, 1871

  • Departments

    Business and Personal- July 1, 1871

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July 01, 1871

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