Intermediate-long-slit spectroscopy of the protoplanetary-nebula candidate CRL 618, obtained using an IPCS on the 2.5-m telescope at the Observatorio Roque de los Muchachos, are reported. The data are presented in plots of forbidden N II (6548 + 6584 A) vs H-alpha and compared with the predictions of theoretical models. Best agreement is found with

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The effects of atmospheric turbulence on astronomical observations from the Observatorio del Teide (Tenerife) and the Observatorio Roque de los Muchachos (La Palma) in the Canary Islands are characterized, summarizing the results of recent measurement campaigns. Data on image quality, atmospheric transmission, and IR conditions are presented in

Observations of the Seyfert galaxy NGC 985 have revealed large-scale extended ionized zones, covering a large fraction of the ring-shaped structure of this galaxy. These ionized regions are a major contributor to the total far-infrared emission of this object. An interaction driven starburst is proposed to explain the main features of this galaxy.

Topics discussed in this issue include active galaxies and cosmology, interstellar and intergalactic medium, and astronomical instrumentation. Papers are presented on modeling rich clusters of galaxies, optical variability of NGC 7469 in 1967-1987, the structure of the broad line region in Fairall 9, the resolution of the compact core of quasars

The bipolar outflow source NGC 1333 (HH 7-11) was observed in the J = 2-1 transition of (C-12)O, and evidence was found for a strong westerly termination of the red outflow lobe at a velocity V(lsr) about 27 km/s, together with maximal mean red-flow velocities Delta v centered upon both the driving source SVS 13 and the westerly limit of the