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Features

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

Bunker's Metal Cutter

Dynamic Refrigerator

Durand's Burette

Iron Ship Building in Wilmington

The Pneumatic Railway Brake and other Applications of the Pneumatic System

The Eight Hour Strike in New York

Meteorites, their Origin

American Inventions in Europe

The Sign Boards of New York

How Paper Collars are Made

Death of James Gordon Bennett

Scientific and Practical Information - June 15, 1872

Recent American and Foreign Patents - June 15, 1872

Departments

  • 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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June 15, 1872

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