  In this paper we report unusual glitches in two young pulsars, PSR J1825-0935
(B1822-09) and PSR J1835-1106. For PSR J1825-0935, a slow glitch characterised
by a temporary decrease in the slowdown rate occurred between 2000 December 31
to 2001 December 6. This event resulted in a permanent increase in frequency
with fractional size $\Delta\nu/\nu\sim31.2(2)\times10^{-9}$, however little
effect remained in slowdown rate. The glitch in PSR J1835-1106 occurred
abruptly in November 2001 (MJD 52220\pm3) with
$\Delta\nu/\nu\sim14.6(4)\times10^{-9}$ and little or no change in the
slow-down rate. A significant change in $\ddot\nu$ apparently occurred at the
glitch with $\ddot\nu$ having opposite sign for the pre- and post-glitch data.

Astrophysics