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We report new measurements of the normal-state electrical resistances of several high-T, {-20 K) A-15 structure superconductors.It is found that the resistances are linear functions of T' from T, to 40 K. Analysis of available lattice heat-capacity data on the same materials shows that it also varies as T' over the same temperature interval. These observations suggest that the T' resistivity is due to electron-phonon scattering. This interpretation is supported by the results of a model calculation for the temperature dependence of the resistivity and the lattice-heat capacity of Nb, Sn.

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