Mr. Richard Gilmore Appel, organist, assisted by Mandeville J. Barker, bass, will give an organ recital in St. John's Memorial Chapel, Episcopal Theological School, this evening at 8.15 o'clock. The following program will be presented: Festival March,  Bantock Sonata in B-flat minor (Second Movement)  Wolfrum Mr. Appel Advent Prose--"Drop down, ye heavens"  (Plainsong) "Sons of the Church, Arise"  (English Traditional Melody) Mr. Barker Song of Joy  Frysinger Kyrie Eleison  Reger Toccata  Bossi Mr. Appel Advent Hymn--"Conditor alme siderum"  (Plainsong) Christmas Song, "O Jesu so meek" Bach Mr. Barker Choral Prelude, "In dulci juhilo"  Bach Berceuse  Dickinson Military March, No. 1, in D  Elgar Mr. Appel