Stellar and interstellar K lines: gamma Pegasi and iota Herculis

High-resolution scans show that the relatively strong ( 90 mA) K lines of Ca ii in the early B stars y Peg and L Her are almost entirely stellar in origin, although the latter case includes a small interstellar contribution. Such stellar lines can be of great importance in augmenting the interstellar absorption, up through the earliest of the B stars. Subject headings: early-type stars - interstellar matter line profiles stars, individual