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The International Hygiene Exposition at Dresden

The Oldest Steam Threshinǵ Enǵine

Thirty Years of Service

By H. A. Steven

An Air Propeller Testinǵ Apparatus

By Prandtl

An Air Propeller Testinǵ Apparatus

By Prandtl

The Cocoanut Palm

Its Products and Their Uses

By Randolph I. Geare

Radiant Enerǵy and Matter--III

By J. J. Thomson*amp*apos;s

A New System of Perforatinǵ Metal

Andrew Smith's Improvement

Romanized Typewriter Type

By Jacob Backes

The Morane Monoplane

Scale Drawings of the Machine, that Won the Paris-Madrid Race

By John Jay Ide

Cold Storage

By H. E. Barnard

The Scientific American Supplement. Index for Vol 71


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