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Features

Valves for Hydraulic Rams

Improvement in Locks

List of Patent Claims

Great Trial of Mowing Machines

Sulphur for Trees

Tests of Boiler Iron

The Mutation of Matter

European Inventions, Discoveries, &C

San Francisco Mint

Influence of Lunar Light

Gumming Saws

Steam Guns

The California Pine

Cleveland Railroad Cars

A Telegraph Without Wires

New Fog Bell

Squashes and Pumpkins

Portable Staging

Commissioner of Patents Resigned

The Life of a Great Inventor

American Sewing Machines in France

A Dispute Respecting Reaping Machines

Ames' Patent Polygraph

A Great Railway

Beware of Colored Fire Works

Instantaneous Fire Engine

Steamer Ocean Bird

The Heat of Steam

Report of the Commissioner of Patents

Discovery and Invention

Look to Your Steam Ganges and Safety Valves

San Francisco Mechanics Institute

The American Verd Antique Marble Company

The Ocean Telegraph Cable

Worcester Mechanics

The Tamarind Tree

California Glow Worm-Natural Lantern

Paris Exhibition, &C

To Cook Old Potatoes

A New Rifle Cannon Ball

Important Items

To Furnace Makers

Improvement in Furnaces

Mowing Machine Match

The Art of Dyeing--No. 28

A Musquito Fan

How Many Trees Make a Ship

Lighting Mines by Gas

Departments

  • Letters

    To Correspondents

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July 07, 1855