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Features

The "Excelsior" Cracker Machine

Interesting Correspondence

Hints to Improvers of Cotton Gins

Ventilation of Mines--The Steam Jet

Agricultural Capacities and Climate of Western Texas

Philosophy in an Eggshell

A Cuban Invention--Improved Calipers

Grist Mills and Milling

A Steam and Air Engine--Electrical Phenomenon

Pulling Pine Stumps

Our Modern Household Conveniences--Mineral Poisons

New York Telegraphic Operations

Applications for the Extension of Patents

Blake's Improved Belt-fastener

Improved Andiron

Blake's Patent Auger

An Inventor's Experience in Procuring an English Patent

Agricultural Science and Art

New Plan for Tide-Mill Water-Works

American Naval Architecture

The Motion of a Cannon Ball

Michigan Salt

A Column of Varieties

Polytechnic Association of the American Institute

How to Make Improvements

The "Sterling" Gas Regulator

An Ingenious Dental Invention--An Artificial Palate

Light without Heat

Orton's Improved Horse-Power

Liberal Prizes Offered for Lamp Improvements

Objects of Interest in the Central Park

A Word to our Friends

Weekly Summary of Inventions - June 9, 1860

Axes Without Eyes

Patent Claims - June 9, 1860

Issued from the United States Patent Office

Money Received

Useful Hints to Our Readers

Vol. I. of the New Series

Important to Inventors

Improved Double-Jointed Cutter-Bar for Harvesters

Polishing Substances--Tripoli

Departments

  • Departments

    Notes and Queries - June 9, 1860

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