Note 46 — Chapter XVIII · SIGNS BEHOLDING EACH OTHER, AND OF EQUAL POWER

Whalley has a very lengthy note upon this and the preceding chapter, to show that Ptolemy here speaks of zodiacal parallels, or parallels of declination, and to point out the necessity of observing a planet’s latitude, in order to ascertain its true parallels. It is, however, to be recollected, that the parallels now alluded to are distinct from the mundane parallels, which are equal distances from the horizon or meridian, and are considered by Ptolemy in the 14th and 15th Chapters of the 3rd Book of this work; although not under the express name of mundane parallels.