Correspondents include: Revista "Iberica"( Ignacio Puig, Pascal Bolufer); Prof Heman L Ibsen; ICI Imperial Chemical Industries Ltd, D A Crooks, Dr A A B Swan (inc Prof G V R Born); Imperial College, D J Hutchinson (inc re Royal College of Science Natural History Society), G Lowry, Sir Roderic Hill; Imperial War Museum, Margaret A Brooks; India, High Commission of; Indian Council of Agricultural Research, Dr B P Pal (inc Dr K B Lal, Plant Protection Adviser to the Government of India); Indo-Norwegian Project, M Devidas Menon; Dr H R Ing; Dr Theodore H Ingalls; Keith Inglis; Sir Christopher Ingold; Dr G Ilsley C Ingram; Prof Vernon M Ingram; Dr J R M Innes; Institute of Biology, Dr D J B Copp, General Secretary, H E G Emmett, North-Western Branch, Helen Graddan, L Broadbent; Institute of Child Health, A P Norman; Institute of Cancer Research Philadelphia, Dr Andrew J Donnelly; International Medical Congress Ltd, Trudy V Gropper, Dr Daniel Bergsma, Stanley E Henwood, Basil O'Connor, Frank L Horsfall, Dr Victor A McKusick, Dr James L Wilson; Inter-University Council for Higher Education Overseas, Mrs M J Filby, Miss C J Lowder, B N H Wheeler, Anna H Berrill; Institute of Animal Dr Theodora Ionescu; J H Isaacson, Institute of Animal Genetics; Dr Masahiko Ishibashi; M C G Israels; Istituto Italiano di Cultura, F Donini; Dr S Itzhaki