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Features

The Beginnings of Plastic Art in Europe

The Mineral Resources of Cuba

By Raimundo Cabrera

A New Fruit

How to Identify Precious Stones

By Leopold Claremont

A New Gold Region

The Technical Schools of Germany

Methods of Preparing Rubber

By R. H. Biffen

Development of Negatives in the Open Air

Galvanic Deposits on Non-Conductors

Work on the Buildings of the Exposition of 1900

Speed Records of United States Torpedo Boats

Electrical Notes

Engineering Notes

Selected Formulæ

The Barber Shop as a Menace to Health

By A. Walter Suiter

X-Rays in the Army

By H. Lyman Sayen

The Supply and Waste of Shipping

Engines of H. M. S “Diadem.”

The Diamond Saw

Acetylene

By Vivian B. Lewes

Patents!

A Curious Profession

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