Scientific American Magazine

Saltpeter

Water Purifier for Steam Boilers

Great Steamship Launched

Terrible Effects of Conical Balls

English Scientific Journal

Prince Albert on Science and Common Sense

Granite Dust

French Single Horizontal Steam Engines

Recent Foreign Inventions

Frantz's Wind Mill

Fermentation

Bursting of Knipp's Steel and Iron Cannon

Colt's Pistols

Sugar Crust in Pans

Death of A. H. Simmons, of the Philadelphia Ledger

Improvement in Billiard Tables

Explosion of a Steam Fire Engine

Porter's Stone Dressing Machine

Test of the Vergennes Scales

Defects of the Granite Pavement

A Candidate for Public Charity

Loughridge's Patent Car Brake

New Year's Presents

British Association for the Advancement of Science.--No. 4

Artificial Manures

New Shoal Near New York Harbor

A Fact for Farmers

Arithmetical Improvement

Pure and Impure City Water

Important Items

Purifying Cotton Seed for the Manufacture of Oil and Oil Cake

Power of Steam Under Great Pressure

Fumigating Paper

The Dhoora or Indian Millet

Quartz Ware

Mechanics

Great Feat in Ascending an Inclined Rope

Heath's Patent Reaper

To Correspondents