Si quis (Lat. if any one), the name of a notice, so called from its first two words, put forth for any objector to dispute the fitness of a candidate for holy orders. It was formerly posted up on the church doors, but now is read from the altar, and is as follows: "Notice is hereby given that A B, now resident in this parish, intends to offer himself a candidate for the holy office of deacon (or priest) at the ensuing ordination of the lord bishop of
, and if any person knows any just cause or impediment for which he ought not to be admitted into holy orders, he is now to declare the same, or to signify the same forthwith to the bishop." In the case of a bishop, the si quis is affixed to the door of Bow Church by an officer of the Court of Arches. This notice corresponds to the proedicatio of the primitive Church and the epikeruxis of Chalcedon (451). See Eadie, Eccles. Cyclop. s.v.; Walcott, Sac. Archoeol. s.v.