Note 40 — Early Typography. CHAPTER III.

These occur in what is known as the fourth edition, of which only three copies exist, two in Haarlem, and one in Lille. It is in the copy at Lille that a leaf is printed on both sides. Mr. Humphreys, in his noble work,—the greatest boon ever conferred in any age or country on students of early Typography,—says, (p. 63) this leaf has “an appearance of being printed on both sides, from the existence of a strong set off.” But if the lines of the supposed ‘set-off’ read in the usual way, they must have been set-off from a set-off, or the impression would appear reversed. Most probably the back of the original impression was printed on by an accidental oversight.