Anatolius of Alexandria, Ante-Nicene Fathers Vol. VI, The Paschal Canon of Anatolius of Alexandria… (1885)
“ But each season is to be begun in such way that the equinox divides the season of spring from its first day; and the season of summer is divided by the eighth day before the Kalends of July, and that of autumn by the eighth before the Kalends of October, and that of winter by the eighth before the Kalends of January in like manner. ”
