There are two letters extant from Cyprian to Stephen, No. 68, respecting Marcianus of Arles, who had joined Novatian, and No. 72, on a Council concerning heretical baptism. It is clear, however, from Ep. lxxiii. sec. 1, that this Council, and consequently the letter to Stephen, was subsequent to the Council under consideration; and consequently Augustine is right in ignoring it, and referring solely to the former. Dr. Routh thinks the words an interpolation, of course before Augustine's time; and they may perhaps have been inserted by some one who had Cyprian's later letter to Stephen before his mind.