I have endeavoured to translate each Syriac word by an English word conveying its original meaning, and to avoid any expression that savours of ambiguity. I am glad to see that Professor Nau also translates *^ca^ = lepevs, alone as "priest," and Turn = Trpeafivrepos, which I call " Elder," he calls " vieillard." He has not condescended to adopt the still more appropriate word "ancien," used by his Protestant countrymen; and is obliged, in consequence, still further to explain it by drawing attention to the fact that the persons in question are not laymen (La Didascalie, Paris, 1902, note, p. 75).