SA Supplements

Timber Dry Docks

Modern Railroad Facilities

Surface and Elevated Cable Railroads for Our Eastern Cities

Military Ballooning

The Corvette Alexandrine, of the German Navy

Improved Anchor Gear

Heating Buildings by Steam from a Central Source

The Thermomicrophone

Illumination of Fountains by the Electric Light

Concrete as a Building Material

Sixteenth Century Helmets and Armor

The Production of Ammonia from the Nitrogen of Minerals

Reply to an Editorial Article in the “Scientific American, ”Entitled “Patent Office Examinations of Novelty of Inventions”

Salicylic Paper

The Action of Light on Silver Chloride

Notes on Some Japanese Oils

Bird Charmers

Winter Scenes on the Brocken

Mexican Archæology

The Earthquakes in Andalusia

The Phœnix Cock of Japan

Patents - May 2, 1885