ON THE EXHIBITION "OUR DRAGONFLIES AND THEIR DEVELOPMENT FROM EGG TO EGG” BY OTTO R. STRUB AND IRENE E. S1EGENTHALER — A brief characterizatinn and a species inventury are given nf the exhibitiun uf (Swiss) dragnnfly cnlnur phntngraphs (105 items; maximum size I x 3 m), shnwn sn far in 4 majur Swiss galleries (Berne, Oberdiessbach, Thun; 1976-1978), and which is scheduled fur an 18-munths tuur (1979-1980) alung a number nf Swiss cities. A bibliugraphy cf the hithertu published press repurts is added.