The Water-Fountain Nebula IRAS 16342-3814: Hubble Space Telescope/Very Large Array Study of a Bipolar Protoplanetary NebulaWe present Hubble Space Telescop (HST) Wide-Field Planetary Camera 2 images adn VLA OH maser emission-line maps of the cold infrared object IRAS 16342-3814, believed to be a protoplanetary nebula.