See an admirable dissertation of M. d'Anville upon the Hellespont or Dardanelles, in the Memoires de l'Academie des Inscriptions, tom. xxviii. p. 318-346. Yet even that ingenious geographer is too fond of supposing new, and perhaps imaginary measures, for the purpose of rendering ancient writers as accurate as himself. The stadia employed by Herodotus in the description of the Euxine, the Bosphorus, etc. (1. iv. c. 85), must undoubtedly be all of the same species; but it seems impossible to reconcile them either with truth or with each other.