Thomas L. Papillon and Hugh M. Ross, 1911 Encyclopædia Britannica (1910)
“ Thus, when bells are struck at considerable intervals, the fundamental notes being fuller and more persistent are more prominent; but when struck in rapid succession (as in English change-ringing or with the higher bells of a Belgian “carillon,” which take the “air”) the higher tone of the “nominal” is more perceptible. The inharmonious character of many Belgian carillons, and of certain Belgian and French rings in England, is ascribed by Canon A. B. Simpson (in his pamphlet, Why Bells sound out of Tune, 1897) to neglect of the “nominals,” the fundamentals only being tuned to each other. ”
