Prof. J. H. Sang has joined the University of Sussex as a professor in the School of Biology. He has a background in zoology, having graduated from the University of Aberdeen in 1935. He has held various research positions, including at the University of Aberdeen and Cambridge. From 1942 to 1948, he worked with the Ministry of Aircraft Production, and since 1948, he has been with the Agricultural Research Council in Edinburgh. His research focuses on the interaction between genotype and environment, with a focus on Drosophila melanogaster. He has developed a method for sterile culture on chemically defined media and has worked on biochemical genetics and tumour formation. Prof. J. C. Mitchell has been appointed to the chair of Urban Sociology at the University of Manchester. He previously worked in African studies at the University College of Rhodesia and Nyasaland. He has conducted extensive research on urbanization in colonial territories and has held various academic and research positions. He has also served on numerous government and international committees. The third report of the United Nations Scientific Committee on the Effects of Atomic Radiation (1964) focuses on the environmental contamination from nuclear explosions and the risks of radiation-induced malignant disease. It discusses the increased residence time of radioactive debris in the stratosphere and the revised dose commitments for the world's population. The report also addresses the risks of leukaemia and thyroid cancer from radiation exposure. The Medical Research Council of Ireland has been active for twenty-five years, initially with limited funding. It has supported research in medical schools and later expanded to clinical research. The Council has made significant contributions to public health, including the reduction of goitre through iodine addition to table salt and research into tuberculosis and cancer. It has also supported cell metabolism research and various public health investigations.Prof. J. H. Sang has joined the University of Sussex as a professor in the School of Biology. He has a background in zoology, having graduated from the University of Aberdeen in 1935. He has held various research positions, including at the University of Aberdeen and Cambridge. From 1942 to 1948, he worked with the Ministry of Aircraft Production, and since 1948, he has been with the Agricultural Research Council in Edinburgh. His research focuses on the interaction between genotype and environment, with a focus on Drosophila melanogaster. He has developed a method for sterile culture on chemically defined media and has worked on biochemical genetics and tumour formation. Prof. J. C. Mitchell has been appointed to the chair of Urban Sociology at the University of Manchester. He previously worked in African studies at the University College of Rhodesia and Nyasaland. He has conducted extensive research on urbanization in colonial territories and has held various academic and research positions. He has also served on numerous government and international committees. The third report of the United Nations Scientific Committee on the Effects of Atomic Radiation (1964) focuses on the environmental contamination from nuclear explosions and the risks of radiation-induced malignant disease. It discusses the increased residence time of radioactive debris in the stratosphere and the revised dose commitments for the world's population. The report also addresses the risks of leukaemia and thyroid cancer from radiation exposure. The Medical Research Council of Ireland has been active for twenty-five years, initially with limited funding. It has supported research in medical schools and later expanded to clinical research. The Council has made significant contributions to public health, including the reduction of goitre through iodine addition to table salt and research into tuberculosis and cancer. It has also supported cell metabolism research and various public health investigations.