  We present results from photometric observations of the dwarf nova system HT
Cas during the eruption of November 1995. The data include the first
two--colour observations of an eclipse on the rise to outburst. They show that
during the rise to outburst the disc deviates significantly from steady state
models, but the inclusion of an inner-disc truncation radius of about 4
$R_{wd}$ and a ``flared'' disc of semi-opening angle of $10^{\circ}$ produces
acceptable fits. The disc is found to have expanded at the start of the
outburst to about $0.41R_{L1}$, as compared to quiescent measurements. The
accretion disc then gradually decreases in radius reaching $<0.32R_{L1}$ during
the last stages of the eruption. Quiescent eclipses were also observed prior to
and after the eruption and a revised ephemeris is calculated.
