We shall not examine minutely all the prayers and ceremonies of the mass, or stop to enquire at what time and by what pope each of them was first introduced, lest we should weary the patience of our readers[9]; but we shall content ourselves with a general review of the mass, as it is now celebrated. We may divide it, as the ancients did, into two parts, the mass of the catechumens, and the mass of the faithful. The first part includes the preparation and confession of sins at the foot of the altar, the _introit_ or anthem and part of a psalm sung at the _entrance_ into church, the _Kyrie eleison_ or petition for mercy, the _Gloria in excelsis_ or hymn of praise (both of great antiquity, as Palmer following our catholic divines has shewn) the collect or collects so called from their being said when the people are collected together, the epistle and gospel, and also the verses, said or sung between them both, called the Gradual[10]: if sung by one voice, it is called the Tract; if by choir, the Responsory. The collects and other prayers are said with the arms extended in the same manner as many figures are represented praying on old christian as well as pagan monuments. After the gospel the sermon used to be preached, as it generally is in our times[11] and after the sermon Pagans, Jews, heretics, schismatics, energumens, public penitents and catechumens were dismissed by the deacon; for the faithful alone were allowed to be present at the celebration of the sacred mysteries, in conformity to the discipline of secrecy. That part of mass, which we have described was called the mass of the catechumens, because these were allowed to be present at it. [Sidenote: Mass of the faithful, blessed water.] From the _missio_, _missa_, or dismissal announced by the deacon to the people before and after the mass of the faithful, the term _missa_ or mass is derived. It was in use in the early ages; for it is found not only in the epistle to the bishop of Vienne attributed to Pope Pius I, and in that of Pope Cornelius to Lupicinus: but S. Ambrose also says "I continued my duty, and began to celebrate mass" and in another place he exhorts the people to "hear mass daily[12]".