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Buildings of the Centennial Exhibition

A. British View of the Exhibition

Exhibition Notes

What New-York Will Show

Brazil at the Exhibition

Laboratory Notes

Sergius Kern, St. Petersburg

Extraction of Sulphur

Constitution of the Phosphates

By M. M. Berthelot and Louguinine


Amateur Wood-Workers

Lessons in Mechanical Drawing


By C. W. MacCord

New Sphygmograph, an Instrument Adapted as a Sphygmograph, Sphygmometer, Cardiograph, Cardiometer, and to other Uses

By A. T. Keyt

Proceedings of Societies

Entomological Society, London, January 5

The French Academy Award of Prizes

Tee Snow-Ploughs of the Central Pacific Railroad

The Royal Society

Honor To Dr. Hofmann

The Drainage of Lake Fucino

The Inflexible and her Armament

By A. Hilliard Atteridge

Raising the Vanguard

Modern uses of the Goose-Quill

A Mechanical Deer

Cement for Fastening Caoutchouc on Metal

Using the Raw Material to the Utmost

Resistance of Slag Bricks to Crushing Strains

The English Channel Tunnel

Hot-Blast Pig for Refined Iron

Registering Thermometer

Coal-Dust and Petroleum Furnace

By J. K. Caldwell

New Photometer

By P. Munzinger

Drying Tobacco and other Substances

By D. B. Chapin

Improvement in Hydrocarbon Furnaces

By J. C. Ramsden

Swinging Ship's Berth

By E. P. S. Andrews

Improvement in Metallic Arched Truss- Bridges

By James B. Eads

The Theory of “Stream Lines” in Relation to the Resistance of Ships

Telegraph Stations in Mid-Ocean

Chinese Acrobats

Aquatic Velocipede

Hay-Ricking Apparatus

By J. R. Hill

Velocipede Sled

By J. M. Story


A Fast Velocipede

Edinburgh Tricycle


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