Note 58

See, e.g., A. Kingsley Porter, Medieval Architecture, New Haven, 1912, II, p. 272. Occasionally, as in St.- Martin-de-Boscherville or St.-Etienne-de-Caen (galleries), this principle had already been applied in Romanesque structures; but it became “standard,” it seems, only after Sens, where three different thicknesses are “expressed” by capitals of three different sizes. There was, however, always an inclination to overlook minor differences in thickness in order to preserve uniformity among several adjacent capitals.