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The Great Lyons Bridge between the Hills of Fourviere and Croix Rousse

The Causes of Boiler Explosions

Wave Power Apparatus

The Grand Manœuvres of the French Army

Photography upon a Black Ground

Sugar making by the Diffusion Process

The Sugar Experiment Station

Standard Storehouse Construction

By C. J. H. Woodbury

Electric Heating

By Mark W. Dewey


The Kousmine Diffusion Battery

The Frankfort Electrical Exhibition

Some Difficulties in the Life of Aquatic Insects

By L. C. Miall

The Chimpanzee at the Zoological Gardens

By W. B. Tegetmeier

Culture of the Grapevine in France

Almond Culture

Photographic Chemistry

By R. Meldola

Seibel's Iodized soap

Useful Engineering Books

Building Plans and Specifications

Dangers of Tin Canned Food

By H. A. Weber


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October 24, 1891