Improved Stave Machinery

Louisville Locomotive Works

Scientific Memoranda

Flax Industry.--No. 4

A Light on Bunker Hill

Wintry Weather in New Brunswick

Storm Lights

List of Patent Claims

Upward Stroke of Lightning

Recent Foreign Inventions

Beveling and Crozing Barrels

Tail-Boards of Wagons

Improved Straw Cutters

Cutting Barrel Heads

Chloroform Counteracted

Virginia Gold Regions

New Composition of Journal Boxes

New Brick Machine

Flat-Iron Heater

Feed Motion of Saws

Cut off of Steam Engines

Coke Ovens

An Ominous Fact

Rich and Poor Inventors

Re-Inauguration of the Crystal Palace

New Process of Making Bread.-Important

Universal Exhibition at Paris

Roth's Anti-Chlorine

Reform in Franking Letters

Steam or Hot Vapor and the Vacuum

American Association for the Advancement of Science

Met in Washington in the Last Week of April, 1854.

To Correspondents

Mechanics

Old Newspaper

Submarine Navigation

Depositing of Aluminum and Silicium

New Respirator-Proof Against Infection &C.

Oxyd of Copper