Calendar: 1970-1971 Page 461

lxxxvi Annual Report of the Delegacy threshold at the frequencies involved thus giving bimodal hearing- threshold curve These findings are together of the greatest importance Dr Emson was on leave of absence for the session at the Uni- versity of Auckland New Zealand Dr Κ Lyons worked for three weeks at the Plymouth Laboratory in continuance of her work on the fine structure of monogenean parasites of fishes and the nature of the osphradium in Buccinum The Greater London Council made three-year grant to enable the scope of the pollution work on the tidal Thames to be extended FACULTY OF THEOLOGY Number of Students BJ aiwfoiteiiio Ks-ibstnd w& SH DEPARTMENT OF CHRISTIAN DOCTRINE The Reverend Professor Wiles conducted postgraduate seminar on The Problem of Continuity and Change in the Development of Doctrine gave course of University Extension lectures for the South- wark Ordination Course and was an external examiner for the Uni- versities of Cambridge and Birmingham DEPARTMENT OF ECCLESIASTICAL HISTORY The Reverend Professor Dugmore acted as external examiner in Church History for the Universities of Wales and Manchester Dr Collinson lectured at the Universities of York and Lancaster on 'The Earl of Leicester problem of Elizabethan Politics' and at sixth-form conference organised by the Historical Association on 'Religion in the seventeenth century' DEPARTMENT OF THE HISTORY AND PHILOSOPHY OF RELIGION Professor Lewis presided over the Philosophy of Religion section of the quinquennial International Congress of Philosophy at Vienna and gave the inaugural lecture to this section During this conference Professor Lewis was elected as the British representative of the Com- mittee of the newly founded International Society for Metaphysics He was also visiting professor at the University of Miami for the first