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SA Supplements Vol 49 Issue 1271supp

SA Supplements

Volume 49, Issue 1271supp

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Features

The Manufacture of a Pneumatic Tire

Modern Explosives

Motor Vehicles for Heavy Traffic

Apparatus for Filtering Air and Smoke

Selected Formulæ

Trade Notes and Receipts

Actinium: A New Radio-Active Element

A. Debierne

Trade Suggestions from United States Consuls

Rails

A Universal Boring and Tapping Machine

Paints and Varnishes

A. H. Sabin

Lister's Inclinometer Theodolite

Bubonic Plague in the Bible

Grindelia Patens

Mason Bees

Hypnotism in Medicine

Apparatus for Lighting and Extinguishing Gas from a Distance

The Gold Deposits of Cape Nome

Charles G. Yale

Practical Conditions in the Application of Green Manures

Patents!

Specific Gravity of the Human Body

John C Packard

New Books