The “Flip-Flap”
An Amusement Apparatus at the Franco-British Exposition. By the English Correspondent of the Scientific American.

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An Amusement Apparatus at the Franco-British Exposition. By the English Correspondent of the Scientific American.
Use and Economy of the Various Types of Coal Cutters
Their Production by Various Methods
How Liquids Readily Decomposable by Heat may be Dried
Testing Field Pieces in Armories
It has Flown for over an Hour in a 10-Mile Breeze, has Attained a Height of 300 Feet, and a Speed of over 40 Miles Per Hour
What Europe is Doing to Improve Gas Lighting
The Strangest of Pet Animals
A Sixth Century Parchment Recently Discovered in Egypt
A Simple Method that can be Practiced by any Photographer
By Our Paris Correspondent
How Greenland Really Appears