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Electric Time Service for New York

The Hosmer Motor

The Salisbury Furnace for Petroleum

Patents for Protecting the Dead

The Official Reports of the Paris Exhibition

The Cost of Insecurity

Skilled Labor in New York City

A New Draughting Pencil

Tramway Rail Experiments

A New Platen Gauge

New Regulating Attachment for Clock Pendulums

Steam Engine Governor

French Subsoil and Clearing Plow

The Blue Process of Copying Tracings

Improved Crusher and Grinding Mill

The De Meritens Magneto-Electric Machine

The Poison Ivy and Virginia Creeper

The Crafty Hermit Crab

Gas a Substitute for Solid Fuel

By M. H. Strong

To Inventors

Communications Received


  • Departments

    Business and Personal

  • Notes and Queries

  • New Books and Publications

  • Index of Inventions

  • Patents

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November 30, 1878