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Guardiola's Pestle for Hulling Coffee, Rice, Etc.

Improved Coffee and Grain Dryer, Solvent for Coralline

From the Atlantic to the Pacific

Gunpowder Pressure Gages

On Ice, Water, Vapor, and Air

New Device for Railway Signals

Vertical Balance Galvanometer

Corks and Cork Cutting

The New Railroad Bridge at Albany

Durand's Burette

Bunker's Metal Cutter

Dynamic Refrigerator

Meteorites, their Origin

The Eight Hour Strike in New York

The Pneumatic Railway Brake and other Applications of the Pneumatic System

Iron Ship Building in Wilmington

American Inventions in Europe

Death of James Gordon Bennett

How Paper Collars are Made

The Sign Boards of New York

Scientific and Practical Information - June 15, 1872

Recent American and Foreign Patents - June 15, 1872


  • From the Editor

    Answers to Correspondents - June 15, 1872

  • Letters

    Correspondence - June 15, 1872

  • Departments

    Notes and Queries - June 15, 1872

  • Business and Personal - June 15, 1872

  • Index of Inventions - June 15, 1872

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