Features
A Dry Canal for Ships
The Garrett Submarine Torpedo Boat
The Tees Breakwater
The Great Bridge Over the Frith of Forth in Scotland
ST. Mary's Church, Brighton
Pneumatic Foundations
Turner's Gas Engine
Electro-Dynamic Transmission
The Old Northwest
A New Electric Burner
On the Number of Vibrations Necessary for the Recognition of Pitch
Spectrum of the Electric Spark Between Magnesium Points
The Temperature of the Carbon Points in the Electric Lamp
The Highest Magnifying Power Ever Reached
A Cheap and Simple Camera for the Microscope
Photographs of Microscopic Objects
The Touroscope
Mars
The Diamond—its Origin, Artificial Production, and Uses
The Earth Five Hundred Million Years Old
On a New Violet Coloring Matter
Ammonia From Atmospheric Air
Falsification of Copperas
The Influence of Shock on Memory
Cleaning Cashmeres and Silks, and Dyeing with Resists
The New an æsthetic—The Bromide of Ethyl
American Apples in Europe
Manna Production in Italy
Two Valuable Insecticides
New Use for Hemp
The Chinch Bug
Amount of Injury it Causes
