 The UCL staff also had office space at the Wellcome Library in Euston Road, and academic librarians participated in the teaching and research functions of the UCL department.These cross-institutional arrangements were formalized in 1976 with the creation of the Wellcome Institute for the History of Medicine, the academic staff at the library becoming honorary lecturers at UCL.The Wellcome Institute was closed in 1999, being replaced by a new Wellcome Trust Centre for the History of Medicine at UCL on the one hand, and the Wellcome Trust Library for the History and Understanding of Medicine on the other, that continued to be a private library owned by the Wellcome Trust.