An oddity about the Barsoom novels... I think the only one not told in first person is "Thuvia Maid of Mars". Seem to remember something like that in a paperback version.
The second paragraph of Thuvia maid of mars. The whole thing reads kinda like that. I don't know what exactly was going on in Burroghs life at that point but it did have an effect.
“Ah, Thuvia of Ptarth,” he cried, “you are cold even before the fiery blasts of my consuming love! No harder than your heart, nor colder is the hard, cold ersite of this thrice happy bench which supports your divine and fadeless form! Tell me, O Thuvia of Ptarth, that I may still hope—that though you do not love me now, yet some day, some day, my princess, I—”