SA Supplements

The Spanish Ship of War Pelayo

Steam Lifeboat

The Resistance of Slide Valves

Railroads in New Regions

The New Magazine Gun used by the German Army

Zincography and Zinco Printing Plates

Liquid Fuel

Vinegar

Improved Warping Machine

Manufacture of Oil of Sassafras

The Sulphur Industry of the United States

Quick Setting Cement

The Air Brush

The Significance of Uric Acid

Methylal

An Improvement in the Production of Sulphuric Acid

Fluorine by the Electrolysis of Hydrogen Fluoride

The Montaud Accumulator

Prof. S. P. Thompson's Dynamo Telephones

Natural Solutions of Cinnabar, Gold, and Associated Sulphides

The Medico-Legal Aspects of Hypnotism

On Some Phenomena Connected with the Freezing of Aerated Water

Patents - April 2, 1887