The Mg II chromospheric emissions in cool stars were analyzed using high resolution IUE archive spectra. The ways in which interstellar (IS) absorptions can affect the shapes of the chromospheric profiles are discussed. It is possible to indicate regions of the sky where the Mg II IS absorption can be neglected, up to distances of a few tens of

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IAUC 4259 available at Central Bureau for Astronomical Telegrams. IAUC 4259 available at Central Bureau for Astronomical Telegrams.

The authors have studied the IRAS extragalactic catalogue (Lonsdale et al., 1985), with the aim of reliably identifying quasi-stellar objects. Using the best available data in the literature on the positions and continuous spectra of QSO's, it is concluded that, of the over sixty associations tentatively suggested in the catalogue itself, on

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