Since the report of the first case by Cappelen in 1895 and that of the first case with recovery by Rehn in 1896,1innumerable instances of surgical repair of wounds of the heart have been recorded. Indeed, this life-saving procedure has become so commonplace that reports of cases limited to the surgical aspects add little to the literature on the subject which Lockwood2reviewed exhaustively. This case is reported because it presents certain features which are worthy of study. In the first place, a series of electrocardiograms was obtained, and as relatively few electrocardiographic studies have been made in cases of wounds of the heart, a summary and comparison of all such reports appear to be of value. Second, the case is of interest in that it serves to substantiate and elucidate further the findings of Beck3and his co-workers in experimental studies of Pick's syndrome in