Of the block-book entitled “Ars Moriendi,” Heineken enumerates no less than seven editions, of which one is printed on both sides of the leaves, and by means of a press. Besides these he mentions another edition, impressed on one side of the paper only, in which appear the following name and date: “+Hans eporer, 1473, hat diss puch pruffmo er+.”[II-96] [Footnote II-96: I am of opinion that this is the same person who executed the cuts for a German edition of the Poor Preachers’ Bible in 1475. His name does not appear; but on a shield of arms there is a spur, which may be intended as a rebus of the name; in the same manner as Albert Durer’s surname appears in his coat of arms, a pair of doors,--_Durer_, or, as his father’s name was sometimes spelled, _Thurer_.] Of the book named in German “+Der Entkrist+”--Antichrist--printed from wood-blocks, Heineken mentions two editions. In that which he considers the first, containing thirty-nine cuts, each leaf is printed on one side only by means of friction; in the other, which contains thirty-eight cuts, is the “brief-maler’s” or wood-engraver’s name: “+Der jung hanss priffmaler hat das puch zu nurenberg, 1472+.” At Nuremberg, in the collection of a physician of the name of Treu, Heineken noticed a small volume in quarto, consisting of thirty-two wood-cuts of Bible subjects, underneath each of which were fifteen verses in German, engraved on the same block. Each leaf was printed on one side only, and the impressions, which were in pale ink, had been taken by means of friction. The early wood-engravers, besides books of cuts, executed others consisting of text only, of which several portions are preserved in public libraries in Germany,[II-97] France, and Holland; and although it is certain that block-books continued to be engraved and printed several years after the invention of typography, there can be little doubt that editions of the grammatical primer called the “Donatus,” from the name of its supposed compiler, were printed from wood-blocks previous to the earliest essays of Gutemberg to print with moveable types. It is indeed asserted that Gutemberg himself engraved, or caused to be engraved on wood, a “Donatus” before his grand invention was perfected. [Footnote II-97: Aretin says that in the Royal Library at Munich there are about forty books and about a hundred single leaves printed from engraved wood-blocks.--Über die Folgen, &c. S. 6.]