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SA Supplements Vol 52 Issue 1337supp

SA Supplements

Volume 52, Issue 1337supp

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Features

Objects and Methods of Investigating Certain Physical Properties of Soils

Lyman J. Briggs

The Density and Molecular Weight of Ozone

A New Method of Diluting Acetylene

Ammonium Amalgam

Erysimin

Engraving Machine

Interlocking Gear for Superheater Valves

A Century of Civil Engineering

Thais and Serapio

The Maned Wolf

Astronomy at the Vatican

The Suppression of Tuberculosis

The “Electricia” Carriages

American Locomotives in England.—I

A Shallow Draught Steamer for Missionary Work in the Congo

School Room Temperature and Humidity

Trade Suggestions from United States Consuls

Patents!

Selected Formulze