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Preserving the Temples of Angkor

French Control of Some Old Ruins by the Paris Correspondent of the Scientific American

The Excavations of the British School at Athens

By R. M. Dawkins

Mathematical Prodigies

The Wonderful Feats of Boys who Became Famous

By G. A. Miller

Right-Handedness and Left-Handedness

By George M. Gould

Gas Engine Cylinder Temperatures

A Mechanical Shovel for Boilers

A Device Which Rapidly and Automatically Covers a Fire Without Opening a Door

New Type of Internal Combustion Motor

An Engine Which Will Run on Kerosene or Crude Oil

By H. Addison Johnston

Army Night Signaling by Acetylene

The New Equipment of the Signal Corps

By L. D. Wildman

Analysis of Red Sea Water

Coating with French Bronze by Dipping Only

Brazing Fluxes

Full Instructions for Mending Cast Iron or for Welding

House-Refuse Clinker Concrete

AS a Building Material by the English Correspondent of the Scientific American

Safeguarding Machinery

By W. H. Booth

High Explosives

The Composition of Modern Powders

By Augustus Klock

Belladonna Grown in America

Catalytic Action

A Discussion in the Light of Modern Chemistry

By Wilhelm Ostwald

A Gas-Electric Car for Railway Service

A Novel Type of Car for Suburban Traffic

Facts about Coal

Annealing of Sterling Silver

Genesis of the Formation and Deposition of the Nevada Desert Gold, Silver and Copper Mines

By Willis E. Everette

The Stream of Planetoids

A New Law for its Location

By Julius Franz


Analysis of Condensed Milk

Tea Flowers

Engineering Notes

Trade Notes and Formulæ

Electrical Notes


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    January 25, 1908