Volume 12, Issue 308supp
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Features
Mr. Le Van on the Gaffney Boiler Explosion
Our Progress in Mechanical Engineering
The Telelogue
Capt. Gaumet's New Apparatus For Optical Telegraphy
Improved Expansible Pulley
Steam Wagons
The Kidder Printing Press
New Astatic Galvanometer
Eastgate House, Rochester
The Electric Discharge through Colza Oil
Opium Smoking in America
Flexibility of Marble
The New Buildings for the Medical Department of the University of Halle A. S., Germany
Soap and its Manufacture from a Consumer's Point of View
The Fuegians at the Jardin D'Acclimatation, Paris
A Natural Wood Preservative
Ozone the Cause of Phosphorescence
The Essential Oil of Ginger
Paraffin to Preserve Eggs
The Philosophy of Insanity
The Disposal of House Drainage
Borate of Quinoidine
Plows and Plowing
What is Good Plowing?