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"Snyder's Little Giant" Engine

Costs of Silver Amalgamation

Smoke and Sparks

Advertising for Foreign Trade

French Pavements

Emery Grinding Machinery

Notes of Patent Office Decisions

New Power Press

New Portable Mill

The Australian Jabiru

The New Spanish Process for Silver and Copper

Zoological Garden at Fairmount Park Philadelphia

Sheet Metal Working Presses

Safety Oxygen Apparatus

A Camera Improvement

Rules For Artificial Respiration in the Treatment of the Drowned

Astronomical Notes

By Berlin H. Wright


  • Departments

    Communications Received

  • Notes and Queries

  • Business and Personal

  • New Books and Publications

  • Index of Inventions

  • Patents

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