Around 1930 Mondrian's art attained a highpoint of purity and sobriety, for which the groundwork had been prepared in the paintings of the previous years, the 1929 Composition, for example. Actually, the Composition II in Red, Blue, and Yellow, 1930 is a variation on the picture of the preceding year, at least in so far as the linear framework is concerned. But for that very reason the subtle differences in the work - such as the subdivision of the left strip of the painting into three unequal rectangles, one of which is the blue square - are all the more remarkable. They show that there can never be any question in Mondrian of a preconceived pattern for a composition, but that every work ar...