Leslie, The only article that comes into my mind is American Psychological Society, "Do science museum exhibits really teach?", Observer 4/6, 1991: 1, 22-23. Even if it is not the one you are looking for I think it's worth reading. Fritz ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Dr. Friedrich Waidacher Klosterwiesgasse 44, A-8010 Graz, Austria, Tel/Fax +43/316/826264 Moenchegg 34, A-8742 St. Wolfgang-Kienberg, Austria, Tel/Fax +43/3578/8216 [log in to unmask] http://www.WebMuseen.de/Waidacher/ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~