The paper concerns the field of Extragalactic Infrared Astronomy, discussed at the Fourth RAL Workshop on Astronomy and Astrophysics. Fifteen papers were presented on infrared emission from extragalactic objects. Both ground-(and aircraft-) based and IRAS infrared data were reviewed. The topics covered star formation in galaxies, active galactic nuclei and cosmology.

The spectra of active galactic nuclei and quasars are characterised by permitted broad emission lines of very different ionization levels. Only a small fraction of the total luminosity of an active galactic nucleus or a quasar is emitted in these lines and yet a very generous amount of telescope time is spent observing these lines and an equally generous amount of computer time is spent modelling them. Why ....................? Because; "Sometimes you can't stick your head in the engine so you have to examine the exhaust."--D E Osterbrock. There cannot be a better rational than this for investigating line emission in active galaxies. The seventh RAL Workshop on Astronomy and Astrophysics was organised to "assess the damage" and to explore new ideas for understanding line emission in active galaxies. No particular line of approach was defined for new models, before a "revised standard model" can be accepted the following questions (posed by the participants in the workshop) will have to be answered.