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Features

John Tyndall

By James Sime

Flame

By Arthur Smithells

Improvement of Potomac Flats, Washington

Reclamation of the Potomac Flats, Washington, D. C.

Cracked Plates

Improved Pipe-Cutting Machine

Velodromes or Permanent Tracks for Bicyclists

A Bicycle Tournament

Steamer for the Manchester Ship Canal

How Window Shades are Made

American, Egyptian, and Indian Cotton Baling

The Waste of Anthracite

By Henry Wurtz

Improved Smoke Annihilator

The Stereoscopic Lantern

Photography without a Camera

The “Absolute Zero” so Called

By Henry Wurtz

Animals of the Tchad

Swordfish Exploits

Swimming Drill in the German Army

The Geological Society of America

By E. O. Hovey

Polypodiums

Alloys

By W. Chandler Roberts-Austen

Patents!

The Preparation and Properties of Free Hydroxylamine

Departments

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    January 13, 1894

    Think Outside the Gift Box