Two Robert Campbell Orations were given: the first, byy Pirofessor V. P. SNydenstricker of the Rockefeller Foundlationi, dealt with "[I'he Clinical Aspects of Deficiency Diseases"; and the second, bv Professor R. A. Q. O'Meara of TIrinity College, Dublin, was entitled "Some Problems of Diphtheria in the Light of Modern KInowle(ige." On each occasion the president referred in appropriate terms t...