world as an effect of phonetic literacy. Thus: “It will be evident from the material I have presented in the first two chapters that medieval statics, like the other aspects of medieval mechanics, depends greatly on the mechanical concepts and their analysis given by Greek mechanicians: the Aristotelian author of the Mechanica , Archimedes, Hero, and others.” (p. xxiii) In the same way “the achievements of medieval kinematics were very much more an integral part of the scholastic discussions of Aristotelian statements regarding force and motion . . . Particularly important was the development of a concept of instantaneous velocity and consequently of an analysis of various kinds of acceleration.” (p. xxv)