My hon. Friend will be aware, if he remembers the Answer I gave to my hon. Friend the Member for Glasgow, Kelvingrove, that this survey will be carried out by the Social Survey Unit. Glasgow Corporation will be carrying out its own, and is equipped do so do. We are co-ordinating the surveys, and the particular problem to which my hon. Friend refers will not impede us in coming to a firm conclusion on the results of these surveys in the autumn.