Abstract
OVER a century ago Dr. George Shattuck, dean of the Harvard Medical School, made an out-standing contribution to postgraduate education of doctors in the New England area by making possible this annual lectureship, so that members of the Society can learn of a wide range of subjects that are new developments in understanding of disease or management of therapies for various disorders. To-day, we turn attention to surgical technics that, under direct vision, allow correction of certain lesions inside of the cardiac chambers.Before 1938, no operations of any kind were available for treating congenital abnormalities of the heart and . . .