  The electronic transport properties in the presence of a temperature gradient
in disordered systems near the metal-insulator transition [MIT] are considered.
The d.c. conductivity $\sigma$, the thermoelectric power $S$, the thermal
conductivity $K$ and the Lorenz number $L_0$ are calculated for the
three-dimensional Anderson model of localization using the
Chester-Thellung-Kubo-Greenwood formulation of linear response. We show that
$\sigma$, S, K and $L_0$ can be scaled to one-parameter scaling curves with a
single scaling paramter $k_BT/|{\mu-E_c}/E_c|$.
