Resistance Minimum of Magnesium: Electrical Resistivity below 1°K

Measurements of the electrical resistivity of the two magnesium specimens described by Spohr and Webber in the preceding paper have been extended to temperatures below 1°K. At the lowest temperature at which data were obtained (0.22°K), the electrical resistivities of both specimens were continuing to increase. The ratio $\frac{{\rho }_{0.22°\mathrm{K}}}{{\rho }_{4.22°\mathrm{K}}}$ was found to be 1.05 for the purer specimen and 1.24 for the less pure (manganese alloy) specimen.