The Glass Menagerie directed by Jeremy Herrin is a bit of an eyeball-scrambler. The action takes place on a huge black platform flanked by 1930s antiques: a typewriter, a broken piano, a reel-to-reel tape recorder and a smattering of Anglepoise lamps. This cryptic setting suggests that the play is being developed in a Museum of the Great Depression, and the show we are seeing is the latest rehearsal.