Farewell symposium for Norman Tennent. Do we need conservation science? In praise of Professor Norman Tennent. Info Type: Publication ISSN: 0960-5657. Place, publisher, year: New York : ICOM Committee for Conservation Working Group on Glass and Ceramics, 2015 Collation: p. 5-7 ; illus. ; 30 cm Subject person: Tennent, Norman - professor of conservation science, University of Amsterdam Subject meeting: University of Amsterdam. Symposium in honour of Norman Tennent 'Do we need conservation science?', Amsterdam, The Netherlands, 2014 Author: Slager, Mandy. Year: 2015. Serial type: Article from Periodical Synopsis: In a series of lectures, the issues of conservation science and of its future were debated. Description: conservation.