1. Rusted, I. E., Scheifley, C. H., and Edwards, J. E. (1952). Circulation, 6, 825.
2. Medical Anatomy;Sibson, F.,1869
3. Quain's Elements of Anatomy;Walmsley, T.,1929
4. IV, Pt. 3. The Heart;Bryce, T.H.; Walmsley, T.; Vol
5. Just as this paper was completed the writer discovered an excellent description of the mitral valve and left ventricle in Sibson (1869) which confirms most of the features set out above