V. Ramakishnan and Y. Ananthanarayana reported an investigation of the behavior and ultimate shear strength of 26 single span simply supported reinforced concrete deep beams having different shear-span ratios in No.2 Proceedings Vol.65 ACI 1968. It is a report that the author describes the proofs can be able well to explain a dynamical properties of reinforced concrete beams in accordance with adaptation and study of his theory of them for the results of their experiments.