In the interesting address by Prof. H. Dingle, which appeared in Nature of July 26, 1947, there is one section about which considerable difference of opinion may exist. He quotes with disapproval the statement of Eddington (“Nature of the Physical World”, p. 275), “The cleavage between the scientific and the extra-scientific domain of experience is not a cleavage between the concrete and the transcendental but between the metrical and the non-metrical”, and he names the theory of evolution as completely confounding Eddington's assertion, because the theory of evolution is undeniably a scientific theory but it “has nothing whatever to do with measurement... it is concerned with qualitative changes alone... yet intelligent and learned men say and believe that science is concerned only with measurement !”