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The New Mausoleum

The Face

By A. H. Thompson


The Photographing of Artillery Projectiles Traveling through the Air at a High Velocity

The Wash-Out Process for Photo-Engraving

By W. T. Wilkinson

Canning Fruit

The Monochord

Vulcanization of Rubber

By Richard Gerner

The Manufacture of Aluminum from Cryolite

The Phonotelemeter

Simple Way to make Porous Waterproof Cloth

The Walker Engineering Laboratories

The Water Barometer of St. James' Tower

The Twin Screw Steamer Columbia

Irrigation in California

By Wm. Hammond Hall

Cookery for Workingmen's Wives

Useful Engineering Books

Buiding Plans and Specifications


  • Departments

    Patents- January 4, 1890

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