ScientificAmerican1901-11-02.jpg Red Cross Magazine 1919-07ThumbnailsScientific American 1912-08-31Red Cross Magazine 1919-07ThumbnailsScientific American 1912-08-31Red Cross Magazine 1919-07ThumbnailsScientific American 1912-08-31Red Cross Magazine 1919-07ThumbnailsScientific American 1912-08-31Red Cross Magazine 1919-07ThumbnailsScientific American 1912-08-31
Waste-heat auxiliary engine of 100 horse power at the Technical High-School, Charlottenburg, Prussia. Vaporizer and condenser. Berlin electrical power station. Vaporized sulphur dioxide gas being used expansively in a separate cylinder.



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

Restoration by: magscanner