  We report preliminary measurements of the first (mean) and second moment
(variance) of the inclusive photon energy spectrum in $B\to X_s\gamma$ decays,
for threshold values of the photon energy in the range 1.8--2.3 GeV as measured
in the rest frame of the $B$-meson. These results are obtained from the Belle
measurement of the spectrum, which used a data set consisting of 152 million
$B\bar{B}$ pairs collected by the Belle detector at the KEKB asymmetric-energy
electron-positron collider operated on the $\Upsilon(4S)$ resonance.
