Chapter CLXVI: Canto V

v. 43. Two things.] The one, the substance of the vow; the other, the compact, or form of it.

v. 48. It was enjoin’d the Israelites.] See Lev. e. xii, and xxvii.

v. 56. Either key.] Purgatory, Canto IX. 108.

v. 86. That region.] As some explain it, the east, according to others the equinoctial line.

v. 124. This sphere.] The planet Mercury, which, being nearest to the sun, is oftenest hidden by that luminary