![Canadian engineer . of 25,000 crowns (about January ii, 1912. THE CANADIAN ENGINEER 131 $6,700) in return for the free treatment of poor lupuspatients. Within the last few years many arc lamps with metallicelectrodes have been invented, which emit a ... Canadian engineer . of 25,000 crowns (about January ii, 1912. THE CANADIAN ENGINEER 131 $6,700) in return for the free treatment of poor lupuspatients. Within the last few years many arc lamps with metallicelectrodes have been invented, which emit a ...](https://c8.alamy.com/zooms/6/4c0113aa5ad04ac196874626a4bc0f79/2akcg3r.jpg)
Canadian engineer . of 25,000 crowns (about January ii, 1912. THE CANADIAN ENGINEER 131 $6,700) in return for the free treatment of poor lupuspatients. Within the last few years many arc lamps with metallicelectrodes have been invented, which emit a ...
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Figure 5.5, 'Applicators for the Kromayer (mercury vapour) lamps.' - Soaking Up the Rays - NCBI Bookshelf
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