a later age.…The Didaché was thus superseded by a more complete and timely Church Manual, and disappeared.”  Dr. Schaff has appended this document also to his edition of the Didaché, noting the borrowed passages on the margin, and distinguishing them by spaced type in the Greek text, and by italics in the English translation. In this work the directions concerning the instruction of Catechumens and their Baptism are addressed to the Catechist and the Minister of Baptism.  They contain only a short outline (c. xxxix.) of the subjects in which the Catechumens are to be instructed, most if not all of which are explained at large in Cyril’s Lectures:  and in the directions concerning Baptism, Chrism, and the Eucharist, the similarity is so close, that in many passages of the Constitu- tions the author seems to be referring especially to the use of the Church of Jerusalem. From this close affinity with earlier works we may be assured that in the Catecheses of Cyril we have trustworthy evidence of the great care which the Church had from the begin- ning bestowed on the instruction and training of converts, before admitting them to the privilege of Baptism; but beyond this, Cyril’s own work has a peculiar value as the earliest extant example of a full, systematic, and continuous course of such instruction. § 2.  Catechist.  The duty of catechizing was not limited to a class of persons permanently set apart for that purpose, but all orders of the Clergy were accustomed to take part in the work.  Even laymen were encouraged to teach children or new converts the first elements of religion, as we learn from Cyril’s exhortation:  “If thou hast a child according to the flesh, admonish him of this now; and if thou hast begotten one through catechizing, put him also xxi on his guard77.”  That this remark was addressed not to the Catechumens, but to such of the Faithful as happened to be present among his audience, appears from what he says elsewhere, “So thou likewise, though not daring before thy Baptism to wrestle with the ad- versaries, yet after thou hast received the grace, and art henceforth confident in the armour of righteousness, must then do battle, and preach the Gospel, if thou wilt78.” The more systematic instruction of those who had been already admitted to the order of Catechumens was entrusted to persons appointed to this special duty.  Thus Origen “was in his eighteenth year when he took charge of the Catechetical School at Alexandria,” which “was entrusted to him alone by Demetrius, who presided over the Church79:”  and S. Au- gustine’s Treatise, De Catechizandis Rudibus, was addressed to Deogratias, who being a Deacon at Carthage, and highly esteemed for his skill and success as a Catechist, felt so strongly the importance of the work and his own insufficiency, that he wrote to Augustine for advice as to the best method of instructing those who were brought to him to be taught the first elements of the Christian Faith. 77 Cat. xv. 18. 78 Cat. iii. 13. 79 Euseb. H. E. vi. 3. 21 Catechetical Instruction.