Plate XIV · Apse (from Greek ἀφίς "Joint" and later also "Arch, Vault"), or Exedra

Vol. I (1948) · full-page plate

APSE OF THE BASILICA OF S. PIETRO IN VATICANO — APSE OF THE BASILICA OF S. PIETRO IN VATICANO
Michelangelo (a. 1550-60).

Entry: Apse (from Greek ἀφίς "Joint" and later also "Arch, Vault"), or Exedra

See the printed page (Internet Archive)