I am sure all subscribers to this list will want to join me in congratulating Ieke Moerdijk on his appointment as a Knight of the Order of the Lion of the Netherlands, which was announced on Friday. He tells me that `Sir Izak' is not an approved form of address in the Netherlands, but I think that the Anglophones amongst us can think of him that way, if only to underscore the parallel with another Sir Isaac (Newton). Peter Johnstone