[151] Palmer’s Early Christian Symbolism.
[152] Dr. Northcote’s Roma Sotterranea.
[153] Perret, Catacombes de Rome.
[154] Dr. Northcote’s Roma Sott. p. 123.
[155] Sacred and Legendary Art.
[156] St. Matt. xviii. 2.
[157] St. Matt. xxvii. 3.
[158] Deut. xvi. 10.
[159] Dr. Challoner.
[160] Dr. Rock’s Hierurgia.