Papers Related to Talks at the Symposium on Biological Aspects of Social Problems Consists of: Offprint of a graph showing Age-Structure Pyramid in Pakistan, from the talk by P Sargant Florence on "The Public Cost of Large Families", reprinted from the Eugenics Review, volume 56 , number 3, October 1964; A table comparing different birth-control methods; A Summary of Mary Peberdy's talk on "Fertility Control for Problem Parents: A Five-Year Experiment in Newcastle-upon-Tyne". 1964