Note 35 — Chapter IV · ToC
Reading edition
The amices are here called "head-pieces," as they were properly little hoods which could be turned up so as to cover the head, and were actually so worn out of doors. The Dominican Friars still wear the amice on the head when approaching the altar at mass.
Sets of vestments often had copes belonging to them. The cope was required not only for use when censing altars at choir services, but also for the celebrant in the procession which (like our Litany) preceded the principal celebration of the Eucharist on Sundays.