James Cuno, the Elizabeth and John Moors Cabot Director of the Harvard University Art Museums, Cambridge, Mass., announced today that the Busch-Reisinger Museum has acquired its first painting by one of the century's greatest masters of geometric abstraction, Piet Mondrian (Dutch, 1872-1944). Composition with Blue, Black, Yellow and Red (1922) is an exceptionally well-preserved example of the artist's classic period, clearly showing Mondrian's painterly sensibility-shiny black lines and delicately brushed fields, subtle gray hues and bold primaries, and careful adjustment of lines and planes as they reach the painting's edge.