In Cat. v. we have first a discourse on the nature of faith, and then towards the end, between § 12 and § 13, the actual words of the Creed are for the first time recited by Cyril to the candidates alone.  In the next four Lectures there are no marks of time, except that vi., vii., viii., were delivered on successive days, as is proved by the word “yesterday”(τῇ χθὲς ἡμέρᾳ) in vii. § 1, and viii. § 1.  It thus appears probable that the five Lectures, v.–ix., belong to the five days, Monday to Friday inclusive, of the second or third week.