Published online by Cambridge University Press: 07 April 2006
* For their critical readings and valuable comments on this paper in its earlier drafts I am indebted to Professors P. Funke (Münster), H.-J. Gehrke (Freiburg), and C. Habicht (Princeton) as we1l as to Drs K. Freitag, U. Gotter (both Münster), and G. J. Oliver (Liverpool); I am especially grateful to Professor N. Luraghi (Cambridge, MA). I would like to thank the anonymous reviewer for his helpful and additional clues, too.