Survey of OH masers at 1665 MHz. III. Galactic longitudes 233 to 326.

The authors have searched the galactic plane from longitude 233° to 326° for OH emission on the 1665 MHz transition. Between longitudes 270° and 326°, where the survey zone was a uniformly sampled grid, they detected 35 OH maser sources, including 24 new ones; most are of the Type I variety that delineates sites of current star formation, and many of the sites are young, with no well-developed H II regions in the vicinity. By combining the present results with those of earlier surveys (longitudes 326°→360°→2°: 29.131.050 and 34.131.126) they have improved on previous estimates of the galactic distribution of these masers.