Harnack thinks that Eusebius at this point wishes to convey the false impression that he quotes from the second apology, whereas he really quotes from what was to him the first, as can be seen from chap. 17. But such conduct upon the part of Eusebius would be quite inexplicable (at the beginning of the very next chapter, e.g., he refers to this same apology as the first), and it is far better to refer the words ἐν τῇ δεδηλωμένῃ ᾽Απολογί& 139· to chap. 13 sq., where the apology is quoted repeatedly.