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Features

Silver in Bohemia

The Panama Railroad

Railway from St. Petersburgh to Warsaw

Philadelphia and Oswego Railroad

Improvement in Screw Propellers

Steamboat Disasters on the Western Waters

The Great India Rubber Case Again

To Dye Hats Green or any other Color

A Poison Spring

Another Tubular Suspension Bridge

Baths for the People

Composition of Water--Paine's Light

Recent Foreign Inventions

The Engineers' Strike

A Terror to Milk Dealers

American Ingenuity

Medical

Important Invention

Improvements of the Hudson River

Ten Hour Law in Ohio

Sharp's Rifle

Brake for Railroad Cars

Gold Seeker

Machine for Making Pills

Patent Shovel

Great Fire Engine Performance

Prescription Scales

Improved Locomotives

Improved Tool for Boot and Shoemakers

Improvement in Knobs

Improvement in Lifting Pumps

Improvement in Fulling Mills

The Fire Annihilator, and Scientific American

The People's College

Are Patents Monopolies?

Cooling Air in Hot Climates

Telegraph Case

List of Patent Claims

Ventilation Lights

Cochineal Raised in Europe

Compensation Pendulums

Grave of an Ancient Sea King

Petition for Extension of a Patent

Resemblance of Lords and Savages

Patent Laws, and Guide to Inventors

To Correspondents

An Important Paragraph

Back Numbers and Volumes

Inventors

Hiccup and Sneezing

On Boilers--No. 23

Nautical Architecture

Departments

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    May 15, 1852

    Think Outside the Gift Box