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Features

Trademarks and Patents and the War Revenue Bill

Vickers' Guns

Three-Color Photographic Printing

By W. DE W. Abney

Apparatus for the Production of Acetylene Gas

Southwark and Vauxhall Water Company's Pumping Station at Streatham

Electrical Notes

Selected Formulæ

Engineering Notes

New Camp Equipments for the German Army

The Battle of Manila

Machine for Making Cartridges

Mineral Wealth of Great Britain

Some Interesting Plants

Pests and Poisonous Creatures Peculiar to Cuba and the Philippines

By G. Archie Stockwell

Strawberry Leaf Spot

The Development of the Central Station

By Samuel Insull

Children and Poisonous Flowers and Plants

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