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The Flow of Metals

By David Townsend

High-Pressure Marine Boiler

Manufacture of Welded Iron Tubes

Improved Governor

Egyptian Obelisks and their Relation to Chronology and Art

By Basil Henry Cooper

The Art of Marbling

By C. W. Woolnough

Preservation of Wood

By J. Clark Jefferson

Liquid Fuels

Austro-Hungarian High Grinding

Paper Negatives

By W. De W. Abney

A Simple Photo Printing Process

By M. Gobert

Improved Carbon Process

Varley's New Electro-Magnetic Machine

Varnish for Melainotypes

Constitution of the Sun as Revealed by Photography

By M. Janssen

The Phonograph

By J. W. S. Arnold

The Whiting Building and Opera House, Holyoke, Mass., Mr. C. S. Luce, Architect

A Concrete Dwelling House

Lectures on Paralysis and Convulsions as Effects of Organic Disease of the Brain

By C. E. Brown-Sequard

Snake Poison

Laboratory Experiences on Board the Challenger

By J. Y. Buchanan

The Application of Ammonium Sulphocyanide in Volumetric Analysis

By J. Volhard

Paraffine

Oxygen Making

British Association Tournament of 1862

Solutions to Problems

Chas. H. Waterbury

Distinguished Chess Players

Scientific American Chess Record

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