1. I. On the cause of the heart beat ; II. The recovery of the heart from fibrillary contractions ; III. Note on the relation between the beat of the ventricle and the flow of blood through the coronary arteries Author(s): Porter, William Townsend, 1862-1949, author Publication: [Boston?] : [publisher not identified], [1897] Subject(s): Heart Rate -- physiologyCardiovascular Physiological PhenomenaMuscle Contraction -- physiology