Abstract

Classifications are given for 865 components of visual multiples; they show no systematic differences from the MK system, and the random errors are one subclass in type and two-thirds of a luminosity class. It is found that at least 1% of the F-type IV and V stars are weak-lined, 32% of the A4-F1 IV and V stars are Am, and 5% of the A0-A3 IV and V stars are early-type Am. Attention is called to the large fraction (55%) of the A3-A9 III-V stars that are of luminosity classes III or IV, unlike the percentage (16%) at neighboring types.