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Features

Ballooning across the Channel

The Railway Tunnel between France and England

Tan-Bark Pressing Machine

Improved Rigging Machine

New Stive Room

The “Tourbillon” Wind Motor

Oil Tank Fires from Lightning, and Suggestions for their Prevention

By Henry Morton

Keyless Watches

By M. Grossmann

The San Jose Electric Light Tower

Mining and Industrial Exposition at Denver

Englethwaite, near Carlisle

Solidification by Pressure

Practical Hints on the Manufacture of Gelatine Emulsions and Plates for Photographic Purposes

By W. K. Burton

Beer Analysis

By J. N. Hurte

Solids, Liquids, and Gases

By W. Mattieu Williams

Some of the Industrial uses of the Calcium Compounds

By Thomas Bolas

Gas for Lighthouse Signals

On the Manufacture of Chloride of Sulphur

By J. Carter Bell

Chlorate of Potash, Binoxide of Manganese, Etc.

Soap and its Manufacture, from a Consumer's Point of View

Treatment of Ammoniacal Water

The Estimation of Sulphureted Hydrogen and Carbonic Acid in Coal Gas

By Lewis T. Wright

Rosa Gallica in Pharmacy

The Adulteration of Drugs in America

By Frederick Stearns

The Physiognomy of Consumption

Fondeur's Improved Plows

St. Vitus's Dance and Sensitive Plants

A Propagating Box

Comets

By Richard A. Proctor

An Anthropomorphous Lemur

The California Oil Field

Champlain's Bearded Wheat

Russian Hills of Petroleum

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