The stated purpose of the study discussed here was to assess the contribution of school meals to the nutrition of 778 primary and secondary school children attending schools in Kent using information collected during a survey made in 1968-1970 which included a weighed diet record, a socio-economic questionnaire, and a medical examination. [Available from British Medical Association, Tavistock Square, London WC1H 9JR, England] (Author/JM)