I walked past Norton Folgate today which still stands derelict, awaiting redevelopment after Boris gave the new scheme planning permission as one of his last acts as Mayor.   Like the Whitechapel Bell Foundry, it’s a reminder that London’s prosperity was once industrial as well as commercial and is the reason why Dan Cruickshank’s recent book about Spitalfields ends so pessimistically.   After forty years of fighting to save the historic character of Spitalfields, he feels the battle is now lost:-