  We have measured 21-cm absorption and emission spectra in the direction of a
further 7 southern pulsars with the Parkes telescope to derive their kinematic
distances and to study the interstellar medium. For the first time we have
successfully obtained HI absorption measurements for PSRs J1602-5100,
J1740-3015 and J1745-3040. We have also significantly improved the sensitivity
and resolution on PSRs J1600-5044, J1752-2806, and J1825-0935, whose spectra
have previously been measured, and have corrected an error in the published
distance to PSR J1824-1945.
  Since the Frail & Weisberg summary of pulsar distances in 1990, a further 23
pulsars now have measured HI distances, mainly through the efforts of the
current group. We discuss the Taylor & Cordes electron density model in light
of these new measurements and find that, although the model towards the
Galactic Centre appears good, the line of sight through the Carina spiral arm
is poorly fit by the model.
