Ibid. The 'olive' and the 'pearl' are Dietrich's own figures. The others follow the method of scriptural interpretation, usual in the writers of that age. P. 162. 'Domini canes,' 'The Lord's hounds,' a punning sobriquet of the Dominican inquisitors, in allusion to their profession. P 163. 'Folquet,' Bishop of Toulouse, who had been in early life a Troubadour, distinguished himself by his ferocity and perfidy in the crusade against the Albigenses and Troubadours, especially at the surrender of Toulouse, in company with his chief abettor, the infamous Simon de Montford. He died A.D. 1231.--See Sismondi, Lit. of Southern Europe, Cap. VI.