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Zeeman spectroscopic observations show that HD 101065 (Przybylski's star) has a magnetic field strength of about -2200 gauss. The limited observations available show no evidence of magnetic or spectrum variability. Observations of the Am star 8 Nor were made in order to determine whether systematic errors were present in the determination of H e , and these data yield an upper limit of 150 gauss for the field of 8 Nor.

A survey of the circumstellar (CS) envelopes of cool giants and supergiants shows no correlation between the quantities of CS gas and dust indicating that radiation pressure on dust grains is not the principal mechanism of mass loss. The observed quantity of dust is not sufficient to drive the observed mass loss. Stars with high dust-togas ratios were also seen to show a high proportion of neutral to ionized gas and a lack of Ca n H and K emission, and in many cases, Balmer emission, and/or molecular masing. We argue that shock waves may be linked to dust formation. Mass loss rates were derived for the program stars and found to correlate with K4 absorption width, indicating that the mass loss mechanism may be coupled to turbulence.

The spectrum of H20 in a CO matrix is qualitatively different from that of H 2 0 in other matrices. Not only are the frequency shifts of the monomeric absorptions with respect to the gas phase larger than in any other matrix, the pattern of the dimeric absorptions is also markedly different. It is concluded that the H 2 0 dimer in a CO matrix has a bifurcated structure. A number of absorptions due to CO strongly interacting with H 2 0 are also reported.

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