Line Strengths for Southern OB stars--II: Observations with Moderate Dispersion

From microphotometer tracings of prismatic spectrograms, the equivalent widths and central depths of H γ and H δ have been used to estimate the absolute visual magnitude for about 380 stars earlier than class A7, including over 60 class I supergiants. Similar data are also given for the helium singlet and triplet lines in the violet region for the O and B stars, and MK types are estimated.