than a tautology.a A A 47. Stein, op. cit., p. 11. ficeKnowledge is the . . . you do knowit A A 4L Max Born, quoted in Brillouin, op. cit., p. 36. AceConcepts which refer . . . of physical continuity.fi A A 49 Ibid., p. 35. liceAn infinitely small. . . space and time.A A A Jeans, op. cit., p. 294. Aceeve