Note 535 — BOOK TWELFTH.
Reading edition
It is not apparent to what Augustine refers. The Arcadians, according to Macrobius (Saturn. i. 7), divided their year into three months, and the Egyptians divided theirs into three seasons: each of these seasons having four months, it is possible that Augustine may have referred to this. See Wilkinson's excursus on the Egyptian year, in Rawlinson's Herod. Book ii.