  The electrical resistivity measurements in the magnetic field are carried out
on the pressure-induced superconductor UGe$_2$. The superconductivity is
observed from 1.06 to 1.44 GPa. The upper critical field of $H_{C2}$ is
anisotropic where $H_{C2}(T)$ exhibits positive curvature for $H//b$ and
$c$-axis. The characteristic enhancement of $H_{C2}$ is reconfirmed for
$H//a$-axis. In the temperature and field dependence of resistivity at $P >
P_{C}$ where the ferromagnetic ordering disappears, it is observed that the
application of the external field along the {\it a}-axis increases the
coefficient of Fermi liquid behavior $AT^{2}$ correspondingly to the
metamagnetic transition.
