Correspondence and photographic material of Nikolaas Tinbergen and the Oxford Animal Behaviour Research Group, compiled by Lawrence Shaffer Correspondence with associated papers, and photographic material accumulated by Lawrence 'Lary' Shaffer during his time with Nikolaas 'Niko' Tinbergen and the Oxford Animal Behaviour Research Group 1967-1976. Also further correspondence from Niko Tinbergen dating from after Shaffer returned to the United States of America, in 1976, continuing until Tinbergen's death in 1988. Includes correspondence with Tinbergen's wife Lies, some of which postdates Niko Tinbergen's death. The bulk of the papers are letters dated 1967-1988 from Niko Tinbergen to Shaffer, some of which are also addressed to Shaffer's wife Beth. These are interspersed with some other correspondence, related papers, and occassional visual aids. The photographic material comprises: seven black and white informal portrait prints of Tinbergen, 145 coloured photographic slides and 30 strips of black and white negatives of Tinbergen and the Oxford Animal Behaviour Research Group, 1968-1976, with indexes and comments by Shaffer. 1967-1990