Note 125 — PART II HISTORICAL STUDIES

The 'western ravine' however, does not fulfil these requirements (see ground-plan, where it lies to the north-west of the hill); while Wace's 'fosse', which—though here ignoring it—he had already accepted, lay, as required, to the south of the hill. Wace mentions another instance (ll. 1737-50) in which this stratagem was adopted,125 but whether our ditch was dug, as he states, expressly or not, the fact of its existence does not depend on his evidence alone.