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Features

Steel Torpedo Boats

Messenger and Churchward's Steam Engine

Progress of Flying Machinery

Glass-Melting Ovens

Improvement of the Mississippi

By J. B. Eads

Vertical Engine with Reversing Gear

By F. W. Turner and St. Albans

Progress of Lumber Flumes

Chimney Construction

Preventing Honeycombs in Castings

Explosions in Coal Mines

The Inventor of the Irish Car

Mr. Stanley

The Mosque of St. Sophia

Ceiling of a Boudoir in a Villa in Wiesbaden

The Technology of the Paper Trade

By William Arnot

Natural Amber

By M. Reboux

Soap and Soap Plants

Glycerine in the Fixation of Indigo

By M. Prudhomme

Blue Black on Garments with Cotton Warps

Coir, or Cocoa-Nut Fiber, as a Paper Material

On Electricity in Dyeing

By M. L*amp*apos;Abbe Vassart

Loupes

On a New Thickener

By M. G. Vaucher

Appearances versus Realities

Rapid Emulsions

Improvements in Photographic Lenses

By Frederick von Voigtlander

Suspension, Solution, and Chemical Combination

By William Durham

Manufacture of Iodine Bromine, Nitrate of Potash, and Soda

By Thohwald Schmidt

Coal and its Components

By Barff

Copper with the Aid of Waste Products

By Hugh M. Wilson

Soda and Potash from Chlorides

By M. J. Bohlig

House Grapes

The Liquefaction of the Gases

Ice-House and Refrigerator

By John Taylor

Stately Seed Plants

The Chinese Yam

Solutions to Problems

Charles H. Wheeler, of Englewood, Ill

Sans Voir

Chess Monthly Problem Tournament of 1857

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