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Gold Powder

New Patent Churn

Round Wood Box Machines

Tennessee and Georgia Railroads

Vermont Railroads

Albany and Buffalo Railroads

Improved Locomotive Boiler

Mosaic Gold

State Line Railroad

Electro Magnetic Locomotive

Drinking During the Holydays

Paine's Light

Remedy for Horse Hoof Bound

Silver Mine in Vermont

Bituminous Coal

Georgia Railroads

Late News from California

Mechanics' Institute of New-York

New Telegraph Experiment

The Wine Culture in the West

Causes of Idiocy

Evening Lectures

Report on Wilder's Lee-way Indicator

The Voltaic Battery—Electrotype


Building for the World's Industrial Exhibition

Change in Relation to Procuring English Patents

New Heddle Machine

Red-Hot Roller

A New remedy for Short-Sightedness

Improved Side Light for Ships

Improvement in Bleaching Ivory

Another Steamboat Explosion

Nature of a Patent Right

Production of Cotton

War about Geometry

Agricultural Chemistry

The Cotton Worm

List of Patent Claims

Cotton Spindles of the World


Gravitation—What it Is

Patent Claims

Peruvian Mummies


Flax Cotton

Scientific Memoranda

Potato Cheese


  • From the Editor

    To Correspondents

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December 14, 1850

20% Sitewide for President's Day