[111] “The Horarium (or more correctly A B C Darium) rendered so celebrated by the detailed notice of so many learned Bibliopolists, as one of the earliest efforts of Koster, and by some considered positively his first experimental work with moveable types, either of bark (?), wood (?), or metal, I have examined very closely, and do not consider that it has any claim whatever to be so considered. It is true, that both type and printing are rude, but that is no sufficient reason for assigning to it a strictly primitive character, as many rudely executed works might be cited long after the practical establishment of the Printing Press. The fact is, that its being printed on both sides, and the imposition for folding being arranged after the regular manner adopted when printing with moveable types was in general use, induce me to believe that it was printed long after the ‘Speculum,’ probably by the successors of Koster who used his types. Even the specimens of Donatuses, which I have examined in Holland (and elsewhere) especially in the Royal Library of the Hague, under the learned guidance of Dr. Holtrop and Mr. Campbel, lead me to the conviction that they were not essays by Koster anterior to the production of the ‘Speculum.’ It is true, that I was shewn a specimen of a Donatus printed on vellum, and _on one side only_, which has been recovered from the binding of an old Dutch book. But I look upon it as a rough ‘proof,’ that was never completed, and eventually used like ordinary waste to stiffen bindings.”--HUMPHREYS, p. 215. This Horarium was discovered in the binding of an old book, forming in fact a portion of the binding. The pages are printed on vellum on both sides; and it has been pointed out that the letter i has a modern peculiarity in being dotted, instead of having, as in the ancient manuscripts and printed books, a stroke above it, thus, í. Enschedé who discovered the work, published a fac-simile of it in 1768. Chatto, who critically examined it, says, in Jackson’s Treatise on Wood-engraving (2d edit. 1861, p. 162,) “It is certainly such a one as he was most wishful to find, and which he in his capacity of type-founder and printer would find little difficulty in producing. I am firmly convinced that it is neither printed with wooden types, nor a specimen of early typography. I suspect it to be a Dutch typographic essay on popular credulity.”--This I think a harsh judgment; and, of the two, I prefer to believe, with Humphreys, that Enschedé was mistaken in supposing the pages he found to be a work, perhaps the earliest work, of Coster, rather than with Chatto, to suspect that he forged it himself. [112] The Town-hall at Haarlem possesses a collection of Costerian relics, but Mr. Humphreys says (p. 215) “they are not, as it seems to me, so important as many writers have deemed them.” [113] _Inquiry_, pp. 202-203.