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We have developed a method for the evaporation of alloys in high vacuum which from the nature of the procedure used should be applicable to all alloys which are not refractory. The method has been tested on α-brass and β-brass and on a gold-cadmium alloy. These alloys have components whose vapor pressures are very different and yet chemical and electron diffraction analyses on the evaporated brass alloys and chemical analysis on the evaporated cadmium-gold alloy show that the composition of the original alloy is held to within close limits.

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