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H.M.S. Inflexible

Bessemer Steel Manufacture

On The Use of a Mechanical Agitator in the Manufac Ture of Bessemer Steel

By W. D. Allen

The Economy of Gas-Engines

By W. E. Ayrton

Electrical Ball Finding

The Microphone in Observatories

Telegraphic Codes and Ciphers

Neophonography–a Practical Short-Hand for Everyday Use

By James Richardson

Method of ascertaining the age of Eggs

Locomotive Distilling Apparatus

Researches on Perchloric Acid

By M. Berthelot

Reaction for Gallic Acid


On the Estimation of the Dried Residue from Wines

By M. L. De Saint-Martin


“The Cup that Cheers”

The Prevention of Nuisance from Gas Purifiers

New Researches on Pharmaceutical Sirups

Limits of Electrolysis

Japanning and Japans

Butter Coloring

A New Imported Enemy to Clover

The Tail in the Human Embryo

Skunk Perfume as an anæsthetic

Natural and Industrial History of the White Pine in Michigan

How Fertilizers are made at Atlanta

Finding the Latitude of a Place by the Stars

The Ancient Palaces of Uxmal, Mexico

Texas Painted Caves

Geological Facts Recently Observed in Montana, Idaho, Utah, and Colorado

Recent Discoveries in Babylonia

Niagara River

On the Geology of “the Palisades”

By Albert E. Hoppock,

Fur-Bearing Animals of Maine


Recent Extinction of the Mastodon

The Scientific American Supplement

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    January 21, 1882