that there was an exhibition of the center for british art that existed the work of a man named mark lenard who was a painting at the getty museum and now at dal ace and he has worked on constable clouds and was so inspired by the work that he has done that he actually responded to the clouds in his own works. so clouds are very timely topic on many forums. and i just wanted to show you an exam el, the many, many types of studies of clouds trying to understand their three dimensionality and not giving you anything else on the composition other than the shapes of the clouds. even though the picture was made in 1822 it is very contemporary without the space. >> and back to the point of self-curating, and i started to think as an art historic when i became aware of clouds, when i start to think about them? we did an exhibition in 2011 at the duyong new see um which some of you may have seen was drawn from the collection in vienna and i brought an essay including saint sabastian and there is a detail in the clouds where you have a rider in the clouds. and art historians have not been able to ag