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SA Supplements Vol 61 Issue 1576supp

SA Supplements

Volume 61, Issue 1576supp

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Features

Science Notes

Valuable Alloys

Sheet Brass (for Sheet and Wire)

Mining for Fossils

Alloy of Thorium

Cement Mortar and Concrete: Their Preparation and use for Farm Purposes

Philip L. Wormley

Producer Gas and Gas Producers

Charles H. Day

Methods for Increasing the Transmitter Energy in Wireless Telegraphy

Contemporary Electrical Science

Snail Cllture in Burgundy

Jacques Boyer

Hydrodynamics: Its Evolution

Report of Isthmian Canal Commission Favoring a High-Level Canal

Europium

Machine-Made Line Drawings for the Illustration of Scientific Papers

R. A. Daly

An Extensible Pulley

On a Tour of the Shops

Experimental Evolution

Hugo De Vries

Some New Ideas about Food

Crystals

Trade Notes and Formulæ

Electrical Notes