Facets of Vision

The papers published in this Volume are the fruits of a symposium held in Regensburg in April 1987. The meeting was held to com­ memorate two most significant events in the development of com­ pound eye research. In chronological order these are firstly, Sigmund Exner''s seminal monograph on the physiology of compound eyes of crustaceans and insects, which was first published in Vienna in 1891, an...