PENITENTIAL PSALMS. Seven psalms, from their internal character, are thus called, viz., 6, 32, 38, 51, 102, 130, 143. These are appointed to be read on Ash-Wednesday. PENTECOST. A solemn festival of the Jews, so called because it is celebrated _fifty days_ after the Passover. It corresponds to the Christian Whitsuntide, which is sometimes called by the same name. PERPETUAL CURATE. The incumbent of a church, chapel, or district, within the boundaries of a rectory or vicarage. His position is in every respect that of a Vicar. PESSIMISM. A philosophy which acknowledges the evils that are in the world, but instead of looking for a "new heaven and a new earth" it looks for release in unconsciousness. It is the religion of doubt, and hopelessness, and despair. It makes _the worst_ of everything. PETER'S (St.) DAY. June 29. This festival, originally a festival of both St. Peter and St. Paul, on the traditional anniversary of their common martyrdom, is of great antiquity, certainly known from the 4th century, and kept both in the East and West on this day. The institution of the festival of the Conversion of St. Paul has now transferred the commemoration of that Apostle to another day, January 25th. PEWS. Enclosed seats in churches. They did not come into use until the middle of the 17th century, and almost belong to the past now. But long before pews there were appropriated seats. The first mention of a "reading pew," or desk, in the body of the church, for the minister, is in 1596: previous to that time his place was in the chancel. PHILIP (St.) AND St. JAMES'S DAY. May 1. There seems to be no adequate reason for the coupling together of these two Apostles. In the Greek Church their festivals are observed separately. Of St. Philip we have notices only in St. John, and early tradition speaks of his preaching in Pamphylia. Of St. James the Apostle, the son of Alphaeus, sometimes supposed to be the same as "James the Less," or the Little, of Mark xv. 40, we know nothing except his name in the Apostolic catalogue. In the Epistle for this day he is identified with James, the brother of the Lord, surnamed the Just, and author of the Epistle bearing his name. But this identification is very uncertain. PISCINA. A drain for water, usually accompanied with decorative features, near the altar on the south side. It was formerly used to pour away the water in which any sacred vessel had been washed. In many churches the Piscina is the only remaining trace of where an altar has been. PLYMOUTH BRETHREN. The name is a misnomer. They call themselves merely "Brethren," and instead of originating in Plymouth, their principal source was near Dublin. They date from 1827, and their existence is a protest against all sectarianism, they holding that there should be a _visible_ unity among Christians. They decline to be looked upon as one of the many sects into which Christianity is divided, and refuse to be identified with any.