Greek Liturgical Manuscript

Eusebius to Carpianus, beloved brother, greetings.
Ammonius the Alexandrian, having shown, as is reasonable, much industry and zeal, has left us a Gospel meaning the harmony of the Gospels compiled from the four: the Gospel according to Matthew, having placed beside it the corresponding passages from the other Evangelists. With the result that the logical order of the three Mark, Luke, and John was necessarily disrupted, insofar as it concerned the continuity of the reading. However, in order that both this might be preserved, as well as the remaining parts throughout the whole body and order, so that you might know the proper places of each Evangelist, I have been led to speak to you truthfully. Having taken the starting points from the commentary of the aforementioned man, I have inscribed for you ten canons in number, which are set out below. The first of these contains the numbers in which the four Mt Matthew, Mk Mark, Lk Luke, Jn John have said similar or nearly the same things. The second, in which the three Mt, Mk, Lk; the third, in which the three Mt, Lk, Jn; the fourth, in which the three Mt, Mk, Jn; the fifth, in which the two Mt, Lk; the sixth, in which the two Mt, Mk; the seventh, in which the two Mt, Jn; the eighth...