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SA Supplements Vol 55 Issue 1432supp

SA Supplements

Volume 55, Issue 1432supp

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Features

The New Power House at Niagara Falls

Orrin E. Dunlap

The Oldest Book in the World

Contemporary Electrical Science

Domestic Life in India

John David Rees

The Serpollet Steam Automobile

Electricity and the Food Problem

The Tetrahedral Principle in Kite Structure

Alexander Graham Bell

On Electrons

Oliver Lodge

The Mystery of Radio-Activity

An Old Pelican Myth Exploded

Parasitic Hymenoptera

New Food for Live Stock in Germany

An Elizabethan Army

R. M. Holden

Trade Notes and Recipes

Explorations of Dr. Sven Hedin in Central Asia (1899-1902)

Trade Suggestions from United States Consuls

Selected Formulæ

Patents!