Obadiah, figure of, Amiens Cathedral, [ 123]. iv. 43.

Obedience, figure of, Amiens Cathedral, [ 118]. iv. 41.

Odoacer, ends Roman Empire in Italy, [ 8]; [ 67]. iii. 21.

Orcagna,[ 81]. iii. 46.

Origen,[ 81]. iii. 47.

Ostrogoths,[ 3]. ii. 12.

" defeat Clovis at Aries, [ 50]. ii. 47.

"Our Fathers have told us," how begun, its aim and plan, [ pref. iii].

" " general plan of, [ Appendix III].

" " plan for notes to, [ 21].