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The Gun Trials of the Twin-Screw Armor-Clad Ram Libertad

Ferdinand De Lesseps

The Pasadena and Mount Wilson Railway

Improved Stone sawing Machine

The Zimer Boat

Agate Grinding in Germany

The Chemical Technology of Drying Oils, Oil Boiling, and Bleaching

By W. N. Hartley

Grease Extraction from Wool


Automatic Mercurial Air Pumps

By August raps

Bagasse as a Fuel

The Electrolytic Bleaching of Cotton and Woolen Fabrics

By H. N. Warren

Points of Contrary Flexure— Graphic Determination

By C. W. MacCord

Shops Operated by Compressed Air


Innocuous White Lead

Respiration in Singers

Sending Plans and Drawings by Telegraph

Thermal Storage

The Farmington, Washington County, Kas, Aerolite

By George Frederick Kunz and Weinschenk


The Discovery of the Sexuality of Plants

Carex Japonica Variegata

The Coloring Principle of Poke Berries

The Manufacture of Pure Naphthalene

The Constitution of the Alkaloids

By Alfred R. L. Dohme


Useful Engineering Books


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