Sol Lewitt removal photo by Michael Maloney San Francisco Chronicle                           Mondrian detail Mondrian detail Mel Bochner Measurement: Plant at Eastside Projects Photo Stuart Whipps   John Bridgeman               Bryan Blumer           Sculpture by pupils at Hermitage School Photo by Helen Brown   Photo by Helen Brown http://www.kengarland.co.uk/KGA%20graphic%20design/galt%20toys/index.html     Sculpture by pupils at Langdon Park School   Drawing by pupil at Hermitage School Sculpture by pupils at Hermitage School                                               William Mitchell