Volume 7, Issue 177supp
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Features
On the Minute Measurements of Modern Science
A New Theory of Terrestrial Magnetism
Sebert's Projectile Velocimeter
Use of Compressed Air Motors for Street Cars
What Grades can the Pneumatic Motor overcome and what Load can it Carry?
Colladon's System of Compressed Air Brakes
New Twin Cylinder Steam Engine
French System of Car Heating by Portable Hot-Water Heaters
Sharpie Model
The Inoxidation of Iron, and the Coating of Metals and other Surfaces with Platinum, by the Processes of Mons. Dode
Slate Quarries of Monson, Maine
Boston Journal of Commerce