Watercolour wonders

No one will leave this exhibition informed of Swiss and Saxon schools of watercolour painters; no one will have been reminded of Delacroix, Nolde and Klee as experts in the medium; no one will know that, on their travels, it was the medium of choice for itinerant painters from Moscow and Madrid throughout the 19th century, or that there were Italians whose best work was watercolour. Brian Sewell in standard