ideas about rule ordering from various sources, including reaading the proofs of his supervisor Zellig S. Harris' main theoretical work, Methods in Structural Linguistics, in early 1947, in which the salient points of Bloomfield's 1939 argument are discussed in a section entitled "Morphophonemics". Indeed, although Harris' book was not published This essay argues that there has been much more continuity and cumulative advance in American linguistics than active participants in the 'revolution' and its historians have made us believe.