  We reanalyze the seminal work by Dolan and Osheroff [Phys. Rev. Lett.
$\textbf{43}$, 721 (1979)] which reported anomalous low-temperature conduction
of high-resistivity thin-film metal strips. We argue that the observed
logarithmic increase of resistance with decreasing temperature in their
3-nm-thick Au-Pd strips be ascribed to the granularity effect on electron
conduction in discontinuous metal films. This reanalysis is further supported
by our measurements on conducting Pb$_x$(SiO$_2$)$_{1-x}$ nanogranular films,
where $x$ is the volume fraction of Pb.
