SA Supplements

From Brute to Man

The Yangtsze Kiang at Hankow

The use of Hydrocyanic Acid Gas for the Destruction of the Red Scale

Fungi Parasitic upon Insects

Vibrating Strings

Phosphorescent Bacteria

Experiments with Spraying

The Magic Javelin

Coil Friction Power Transmitter

The Railroads of Mexico

Propeller for Pleasure Boats

Brickmaking in America

Omnibus with Roofed Imperial

The Manufacture of Vinegar

The Manufacture of Portland Cement from Slag

Light Batteries

Industrial Electric Ozonization

The Apparatus for Electrical Execution

Historical Note on Thermal Batteries

Lightning or other High Tension Current Protectors

Peroxide of Hydrogen: Its Preservation and Commercial Uses

Analyses of some American Fire Clays

A Novel Seesaw

Feodossieff's New Method of Tempering and Hardening Steel for Cannon and Projectiles

Building Plans and Specifications

Useful Engineering Books

Baking Powders

Pharmaceutical Meeting

Patents!- May 31, 1890