  A measurement of the proton structure function $F_{\!2}(x,Q^2)$ is reported
for momentum transfer squared $Q^2$ between 4.5 $GeV^2$ and 1600 $GeV^2$ and
for Bjorken $x$ between $1.8\cdot10^{-4}$ and 0.13 using data collected by the
HERA experiment H1 in 1993. It is observed that $F_{\!2}$ increases
significantly with decreasing $x$, confirming our previous measurement made
with one tenth of the data available in this analysis. The $Q^2$ dependence is
approximately logarithmic over the full kinematic range covered. The subsample
of deep inelastic events with a large pseudo-rapidity gap in the hadronic
energy flow close to the proton remnant is used to measure the "diffractive"
contribution to $F_{\!2}$.
