SA Supplements

Metamorphosis of the Deer's Antlers

Monkeys

Silk-Producing Bombyces and other Lepidoptera Reared in 1881

Mosquito Oil

The Panama Canal

The Cathedral of Burgos

Improved Averaging Machine

Compound Beam Engine

Power Hammers with Movable Fulcrum

The Bicheroux System of Furnaces Applied to the Puddling of Iron

Gessner's Continuous Cloth-Pressing Machine

Improvements in Woolen Carding Engines

Novelties in Ring Spindles

Electro-Mania

Meridian Line

Photo-Engraving on Zinc or Copper

Action of Magnets upon the Voltaic Arc

Volckmar's Secondary Batteries

The Mineralogical Localities in and around New York City, and the Minerals Occurring Therein

Antiseptics

Crystallization and its Effects upon Iron

Patents