Number of Candles at Mass.—(1) At a pontifical high Mass, celebrated by the ordinary, seven candles are lighted. The seventh candle should be somewhat higher than the others, and should be placed at the middle of the altar in line with the other six. For this reason the altar crucifix is moved forward a little. In Requiem Masses, and at other liturgical services, e.g. Vespers, the seventh candle is not used. If the bishop celebrate outside his diocese, or if he be the administrator, auxiliary, or coadjutor, the seventh candle is not lighted. (2) At a solemn high Mass, i.e. when the celebrant is assisted by a deacon and subdeacon, six candles are lighted. This is not expressly prescribed by the rubrics, but merely deduced from the rubric describing the manner of incensing the altar (Ritus celebrandi Missam, tit. iv, n. 4), which says that the celebrant incenses both sides of the altar with three swings of the censer prout distribuuntur candelabra. (3) At a high Mass (missa cantata), which is celebrated without the assistance of deacon and subdeacon, at least four candles are required (Cong. Sac. Rit., 12 August, 1854), although six may be lighted. At these Masses under (l), (2), (3), the two lighted candles prescribed by the Missal (Rubr. XX) to be placed one on each side of the cross, are not necessary (Cong. Sac. Rit., 5 December, 1891). (4) At low Mass celebrated by any bishop, four candles are usually lighted, although the "Caeremoniale Episc." (I, cap. xxix, n. 4) prescribes this number only for the more solemn feasts, and two on feasts of lower rite. (5) At a strictly low Mass celebrated by any priest inferior to a bishop, whatever be his dignity, only two candles may be used. (6) In a not strictly low Mass, i.e. in a parochial or community Mass on more solemn feasts or the Mass which is said instead of a solemn or high Mass on the occasion of a great solemnity (Cong. Sac. Rit., 12 September, 1857), when celebrated by a priest more than two candles, and when celebrated by a bishop more than four candles may be used. At all functions throughout the year except on Good Friday and Holy Saturday, before the Mass bishops are allowed the use of the bugia or hand-candlestick. The use of the bugia is not permitted to priests, whatever be their dignity, unless it be granted by an Apostolic privilege either personal, or by reason of their being curial dignitaries. If, on account of darkness, a priest stands in need of a light near the Missal he may use a candle, but the candlestick on which it is fastened cannot have the form of the bugia (Cong. Sac. Rit., 31 May, 1817). An oil lamp can never be used for this purpose (Cong. Sac. Rit., 20 June, 1899). At the Forty Hours Devotion at least twenty candles should burn continuously (Instructio Clementina, section 6); at other public expositions of the Blessed Sacrament at least twelve (Cong. Sac. Rit., 8 February, 1879); at the private exposition, at least six (Cong. Episc. et Reg., 9 December, 1602). The only blessings at which lighted candles are prescribed are: (1) of the candles on the feast of the Purification; (2) of the ashes on Ash Wednesday; (3) of the palms on Palm Sunday.
Double Altar.—An altar having a double front constructed in such a manner that Mass may be celebrated on both sides of it at the same time. They are frequently found in churches of religious communities in which the choir is behind the altar so that whilst one priest is celebrating the Holy Sacrifice for the community in choir, another may celebrate for the laity assembled in the church.
Portable Altar.—A portable altar consists of a solid piece of natural stone which must be sufficiently hard to resist every fracture. It must be consecrated by bishop or other person having faculties to do so. By virtue of Facultates Extraordinariæ C., 6., the bishops of the United States may delegate a priest. It is inserted in, or placed on, the table of the altar, about two inches from the front edge, and in such a manner that, by its slight elevation above the table, the celebrant can trace its outlines with his hand and thus recognize its location beneath the altar-cloths. In general it should be large enough to hold the Sacred Host and the greater part of the base of the chalice (Cong. Sac. Rit., 20 March, 1846) If the altar is intended for the celebration of Masses at which Holy Communion is distributed, it should be large enough to hold the ciborium also. Five Greek crosses are engraved on it, one near each corner and one in the centre, to indicate the place on which the unctions are made at the consecration. If the cross in the centre should be wanting, the unction must not be omitted, but the omission of this unction would not invalidate the consecration (Cong. Sac. Rit., 2 May, 1892). The table and supports on which the portable altar rests may be constructed of any suitable material, wood or stone, provided they have the proper dimensions. For the portable altar the Greeks generally use the antimensium, a consecrated altar-cloth of silk or linen, after the manner of our corporals. When a church is consecrated, a piece of cloth large enough to form several antimensia is placed on the altar. It is consecrated by the bishop pouring wine and holy chrism on it and stiffening it with a mixture consisting of relics pounded up with wax or fragrant gum. It is afterwards divided into pieces about sixteen inches square, and after the Holy Eucharist has been celebrated on them for seven days these pieces are distributed as occasion requires (Neale, Holy Eastern Church, I, 187).
Privileged Altar.—An altar is said to be privileged when, in addition to the ordinary fruits of the Eucharistic Sacrifice, a plenary indulgence is also granted whenever Mass is celebrated thereon, the indulgence must be applied to the individual soul for whom Mass is offered. The privileged altar must be a fixed, or immovable, altar, but in a wider sense that is, it must be stationary or permanent, whether built on a solid foundation or attached to a wall or column, even though it be not consecrated, but have merely a consecrated stone (portable altar) inserted in its table. The privilege is annexed not to the altar-stone, but to the structure itself, by reason of the title which it bears, that is, of the mystery or saint to whom it is dedicated. Hence if the material of the altar be changed, if the altar be transferred to another place, if another altar be substituted for it in the same church, provided it retains the same title, and even if the altar is desecrated or profaned, the privilege is preserved. To gain the indulgence, the Mass must be a Mass of Requiem, whenever the rubrics permit it. If, on account of the superior rite of the feast of the day, or on account of the Exposition of the Blessed Sacrament, or for other reasons, a Requiem Mass cannot be celebrated, the indulgence may be gained by celebrating another Mass (S. C. Indulg., 11 April 1864). This privilege is of two kinds, local or real and personal. It is local or real when it is annexed to the altar as described above. Hence whoever the priest may be who celebrates Mass at such an altar, the indulgence is gained. It is personal when it is inherent in the priest, so that it does not depend on the altar, but on the priest who celebrates. Hence on whatever altar he may celebrate, whether it be a fixed or a portable one, and in whatever church he celebrates, the altar he uses is for the time being a privileged altar. On 2 November every altar is privileged. The bishops of the United States have the faculty (Facultates Extraordinariæ C., fac. viii) of declaring privileged one altar in every church and public chapel or oratory, whether it be conse-
