Abstract
plates were taken with the 60-inch reflector of the Bosque Alegre Station of the Cordoba Observatory and with the 69-inch reflector of the Flagstaff Station of the Perkins Observatory; these plates have a dispersion of 42 Â/mm. The results of the observations are given in Tables I and II. Table I contains all those stars in which there is a large disagreement between color index and spectral type. The spectral types were established by comparison with suitable standards taken with the same spectrograph. If not stated otherwise in the notes, the general appearance of the spectra are normal for their type. This evidently does not preclude that when examined at higher dispersion other anomalies might appear. The color indices were taken from the Catalogue of Photometric Data in preparation for publi
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