Volume 9, Issue 227supp
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Features
The St. Gothard Tunnel
The Construction of a New Foundation for Washington Monument
The Great Tunnel Under the Hudson River Between New York and New Jersey
The Great Thames Tunnel
Mines as Sources of Wealth
Multiplication Simplified
Smouldering Fire and Spontaneous Ignition
Hand Made Paper
Progress of the Southern Pacific
Etching on Glass
The Photo-Lithographic Process
Steamboat Wheels
Forged Checks
King's Electric Light
An Unpublished Chapter in the History of the Morse Telegraph
A Photo Lantern
Curious Voltaic Arc Experiment
Eliquation of Alloys
ParkeSine, Xylonite, or Celluloid
Electricity in Wool
Composition of Maize
Determination of Chemical Affinity in Terms of Electro-Motive Force
Universal Method of Determining Arsenic
Barometrical Pressure in Connection with Fermentation
On Tonga: A Remedy for Neuralgia, Used by the Natives of the Fiji Islands
Artificial Diamonds
Beers and Ales, Considered Medically
Plans for Reducing Obesity
Cure of Diarrhea by Ice Water Injections
Effects of Thirst
On the Physical Configuration of Mars
City Scavenging at Boston
Automatic Disinfecting Apparatus
Success
Total Solar Eclipses
Raising Turkeys
Microscopy
Hall of the Academy of Natural Sciences. Biological and Microscopical Section.
Philadelphia, Feb. 2, 1880.