Inside Out Library · Explore

Scientific American, Vol. 42, No. 2 (1880) (1880)

leaf 4

An illustration from Scientific American, Vol. 42, No. 2 (1880), 1880, leaf 4
broken or injured by jars. We saw one of the carbon horse- for the simplicity of the process by which it is made, and its does not form a part of the electrical conductor until it shoes nearly straightened before it broke. The carbon is touched by the thumb screw, 8, this screw being efficiency as… … high temperature, which is pounded as follows: From 5 maintained for a considerable to 20 parts of sugar or sirup time. The only index of the are mixed with from 25 to 30 parts of nitric acid in a wooden or gutta ‘percha vessel. completion of the process is the crackling of the oxide not only…

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 42, No. 2 (1880)

More like this