AbstractElectrical resistivity of high purity polycrystalline gadolinium, having residual resistivity of about 2.4 μΩ cm, has been studied as a function of temperature between 4 and 375 °K. Between 5 and 15 °K, the intrinsic resistivity is proportional toTnwithn= 3.73 ± 0.03. This value is close to the theoretically expected temperature dependence,T4, of the magnetic resistivity as suggested by Mackintosh on the basis of a linear spin wave dispersion law. The electrical resistivity in the neighborhood of 210 °K does not exhibit any anomaly of the type which would clearly support the existence of the ferromagnetic‐antiferromagnetic transformation proposed by Belov and his co‐workers. The detailed resistivity behavior at the Curie temperature, 293 ± 1 °K, indicates a gradual transition from the ferromagnetic to the paramag