A Film Lecture by Dr. Harald Rosenthal of the Biologische Anstalt, Helgoland and the Fisheries Research Station, Nanaimo "The POTENTIAL and LIMITS of AQUACULTURE" 8 p.m. Wednesday 19th June 1974 at the Queen Anne Room Hotel Georgia, Vancouver, A Film Lecture by Dr. Harald Rosenthal of the Biologische Anstalt, Helgoland and the Fisheries Research Station, Nanaimo "The POTENTIAL and LIMITS of AQUACULTURE" 8 p.m. Wednesday 19th June 1974 at the Queen Anne Room Hotel Georgia Vancouver. Plad Weaway - —: