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Improved Bolt Heading Machine

Improved Planer

A New Specific for Rheumatism

Is the Earth the Only Inhabited World?

A New Rule in Respect to Caveats

Opening of the Vienna Exposition

The Movements of the Stars

Nature and Art--The Mystery of the Magneto-Electric Machine

Scientific and Practical Information

The Wonders of the Egg,--Second Lecture

Foot Power Jig Saw

Taylor's Patent Firkin Head

Science Record.--New Edition

Stevens Institute Lectures.--Gold Mining in California

By Silliman

Paper Making

Country Homes--Rural Cottages

Tree Protector

Fruit Fork


Decisions of the Courts - May 17, 1873

Recent American and Foreign Patents - May 17, 1873

Answers to Correspondents - May 17, 1873

Communications Received - May 17, 1873


  • Departments

    Correspondence - May 17, 1873

  • New Books and Publications - May 17, 1873

  • Business and Personal - May 17, 1873

  • Notes and Queries - May 17, 1873

  • Index of Inventions - May 17, 1873

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