Further remarks on reciprocal constructions

In view of the breathtaking scope of the comparative research enterprise on reciprocal constructions that was led by Vladimir P. Nedjalkov and whose results are published in these volumes, I have no choice but to select and highlight a few topics that I find particularly interesting and worthy of further comment and further study. I will focus here on conceptual and terminological issues and on some phenomena that have been discussed in the literature but are not so well represented in this work. I will also try to summarize some of the major known generalizations about reciprocals, as discussed in this work and elsewhere, in the form of twenty-six Greenberg-style numbered universals.