Volume 26, Issue 671supp
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Features
A Well Ventilated Mine
Apparatus for Mining and Blasting under Water on the Panama Canal
On the Distribution of Internal Friction of Engines
Mill for Concentrating Silver Ores, at Leadville, Colorado
Improved Flax Scutching Machine
Lebrun's Gas Burner
The Friction of Metal Coils
The Petite Anse Salt Mine
Rolling Seamless Tubes
On Rolling Seamless Tubes from Solid Bars or Ingots by the Mannesmann Process *