  We use digitized Schmidt direct and prism plates taken for the northern
hemisphere Hamburg Quasar Survey (HQS) to obtain optical identifications for
all high galactic latitude X-ray sources in the ROSAT Bright Source Catalogue
(RASS-BSC) at |b|>=30 deg and DEC >= 0deg. In this part of the sky the RASS-BSC
contains about 5300 X-ray sources. Presently, identifications exist for about
4100 RASS-BSC sources in this galactic latitude range.
