The activities of the technical department under the direction of David Rosen in caring for the 24,000 odd objects in the Walters collection are illustrated with short accounts of the treatment given in a number of cases including: a panel painting, a lacquered wood sculpture, several bronzes, Greek vases and a Minoan ivory statuette. The peculiar circumstances at the Walters Art Gallery rendered its studio a place of exceptional interest and instructiveness in which to work. The great diversity of the objects brought every conceivable problem to the laboratory and the extent of the collection assured rich material for comparative examination. The informal organization of the relatively small museum staff permitted, in fact necessitated, the closest kind of collaboration between curator and technical specialist -a situation whose value cannot be over-emphasized. Such close association provides the conservation staff with the benefit of the curator's historical, stylistic and iconographic knowledge, while the curator, on the other hand, has the opportunity of gaining the intimate knowledge of the structure and technique of his objects which often remains the private experience of the restorer. I would like especially to express my appreciation of one of the most felicitous circumstances at the Walters Art Gallery -- the complete freedom of action and decision allowed to the professional staff. Whether or not to subject an objectto treatment and, what kind, whether to remove restorations and to what extent, are matters left entirely to the judgement of the curators and the technical department in collaboration. The confidence thus reposed by the trustees in the staff has borne good fruit, we believe, over the last nineteen years in the contributions to archaeology, art history and conservation techniques which have been made and will continue to be made as the riches of the Walters collection are explored. -- AATA