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SA Supplements Vol 53 Issue 1374supp

SA Supplements

Volume 53, Issue 1374supp

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Features

Methods of Estimating Population

Headworks of the New Mandalay Canal

Textile Industries of Germany

The Scientific Study of Accidents

Bicycle Brakes

An Ingenious Lock Nut

Plate-Bending Rolls

The Sanitary Condition of Street Cars in New York

George A. Soper

Primitive Chronology

The New German Cruiser “Prinz Heinrich.”

Paints without Oil

Studebaker wide Spraying Electric Car

Portable Electric Station

Electric Furnaces

Bertram Blount

The Manufacture of Artificial Limbs

Trade Suggestions from United States Consuls

Patents!

Selected Formulæ