This Mr. Dewhurst has not understood the Impressionist movement in the very least. All he sees in it is a technical method... He also says that before going to London we knew nothing whatsoever about light; but we have studies that prove the contrary. He omits the influence of Claude Lorrain, Corot, all the 18th-century painters, Chardin most of all. But what he fails to realize is that while Turner and Constable were of service to us, they confirmed our suspicion that those painters had not understood 'The Analysis of Shadows', which in the case of Turner are always a deliberate effect, a plain dark patch. As to the division of tones, Turner confirmed us its value as a method, but not as a means of accuracy or truth to nature. In any case, the 18th century was our tradition. It seems to me that Turner too, had looked at Claude Lorrain. I am even inclined to think there is a picture by Turner, 'Sunset', hung side by side with a Claude.