Proceedings of the international conference on the peaceful uses of atomic energy; vol. 10, radioactive isotopes and nuclear radiations in medicine, and vol. 11, biological effects of radiation: Editorial Board, Robert A. Charpie, Donald J. Dewar, André Finkelstein, John Gaunt, Jacob A. Goedkoop, Elwyn O. Hughes, Leonard F. Lamerton, Aleksandar Milosević, Clifford Mosbacher, César A. Sastre, and Brian E. Urquhart. Pp. ix plus 544 (Vol. 10) and ix plus 402 (Vol. 11); New York, 1956, United Nations. Price $8.00 per volume