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Scientific American 1902-03-15

ScientificAmerican1902-03-15.jpg American Legion 1932-08ThumbnailsScientific American 1903-09-26American Legion 1932-08ThumbnailsScientific American 1903-09-26American Legion 1932-08ThumbnailsScientific American 1903-09-26American Legion 1932-08ThumbnailsScientific American 1903-09-26American Legion 1932-08ThumbnailsScientific American 1903-09-26

the electrolytic refining of copper. Trainload of copper bars. Traveling crane placing set of cathode plates in a tank. Tank house. Boiler room. The furnace house -- casting and cooling refined copper bars.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner