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Chain Making Machine

Leather Belting

The Latest Arctic Explorations--The Remarkable Escape of the Polaris Party

Scientific Executions

American Exhibits at the Vienna Exposition

Scientific and Practical Information

Improved Cutting Nippers

Water Main Tapping Machine

Miner's Drill Bar and Bits

Improved Plow Handle

A Collapsing Life Boat

Chandler's Patent Dip Pipe

A New Deep Sea Thermometer

Sanitary Notes--Drainage for Health

The Wonders of the Egg.--IV

Astronomical Notes

Feed and Filter for Steam Boilers

Improved Rotary Steam Engine

Country Cottage and Stable

Recent American and Foreign Patents

Patent Office Decisions

Answers to Correspondents


Communications Received


  • Departments


  • New Books and Publications

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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June 07, 1873