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Features

The Ader “Avion.”

Air in Relation to the Surface-Condensation of Low-Pressure Steam: An Experimental Study of Condenser Problems

Method of Use

By James Alex. Smith

Industrial Alcohol: Its Uses

By H. W. Wiley

Some Remarks on the Manufacture of Malt

By P. Martens

The use of Tar on Roads

By James Owen

A Submarine Lamp

Water for Table Use

The Fuel Item and Real Economy

A Shorthand-Writing Machine

By Alfred Gradenwitz

An International Southern Telescope

By Edward C. Pickering

Improved Method for Canning

Magnetic Indicator for Tempering Steel

How Seeds are Carried.—II

II. Seeds that Tumble and Float

By Craig S. Thoms

Chinese Rhubarb

By E. H. Wilson

Acetylene vs. Coal Gas or Electricity

Some Hints on Melting Metals and Alloys

By Walter J. May

Electrically-Operated Hatches

Women Astronomers

Science Notes

Engineering Notes

Departments

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    December 01, 1906

    Think Outside the Gift Box