Brief reports on: guest artists and repertory for American Ballet Theatre's upcoming season; the 50th anniversary celebration of the Royal New Zealand Ballet, marked by a new set of postage stamps, among other events; Mikhail Baryshnikov's work as a photographer; the departure of Christopher Nourse, managing director of the English National Ballet; commemoration of the 300th birthday of St. Petersburg in two exhibitions in London; Anthony Bowne's appointment as new principal and chief executive of Laban, replacing Dr. Marion North.