Philip Schaff,
Ante-Nicene Fathers Vol. VI, Extant Fragments…
(1885)
“ One of these he addressed to Flavius, and another to Domitius and Didymus, in which he gives the canon for eight years, and shows that the Paschal feast ought not to be kept until the passing of the vernal equinox. And besides these, he wrote another epistle to his co-presbyters at Alexandria. ”
