Clinical Studies on the Nature of the Auricular Flutter

1. In five cases of the auricular flutter, the circus motion of the excitation wave was established in four and the auricular ectopic automa-tism in one. 2. It was concluded that there are two kinds of mechanism in the clinical auricular flutter, as in the experimental observations. This con-clusion solves the long lasting disputation between two theories. 3. Some considerations on the differences in the routine electro-cardiograms of these two kinds of the flutter were described.