But what is the evidence in the case? All that can be brought forward is the nature of the ink, and the appearance of the printed pages. As regards the ink, it differed from that used at a later period in Germany, and was certainly much more fluid; this is shewn by its spreading over the edges, and filling up the loops of the letters. By itself, however, the ink proves nothing as to how the types were impressed; that is to be learnt from the appearance of the pages; and this shews that impressions were taken by a rolling process. A wooden or metallic roller, 7 inches long, with a diameter of not less than 3 inches, and covered with two or three folds of fine woollen cloth, rolled, with a sufficient amount of pressure, over the back of the paper when it was laid upon the types after they had been inked,—or an uncovered roller, if two or three folds of woollen cloth were laid over the paper,—would do all that was needed, and be quite sufficient to account for the practice of printing on one side of the paper only. The statement how such an impression might be taken, is not however a proof that such was in reality the method adopted. That proof lies in the fact, that the capital letters of the columns of text on the left hand margin, and the end letters of the lines on the right, are all more or less blurred, and choked with ink, in a way which only such a cylindrical method of printing would effect; that effect being caused by the first and last contact of the roller with the outer edges of the types. In cylindrical machine printing at the present day, where care has not been taken to guard the edges and ends of the types by ‘bearings,’ similar blurrings may at any time be seen. In the admittedly rude appliances of the earliest printers such appearances would under such a process be at least as plainly shewn. And in the absolute fac-simile which Mr. Humphreys gives, on plate 10 of his work, of the page of the Speculum printed from separable letters with black oleaginous ink, those appearances are most plainly visible. Of course it was possible to print sheets of paper in this way on both sides; but care would have to be taken to guard the first printed side by interposing between it and the roller a waste or setting-off sheet, before the process was repeated. And, as already hinted, by the use of ‘bearings,’ the blurring might be avoided. The difference however between such a process and that invented and put in practice by Gutenberg, is as great as that which exists between the battering rams and catapults of the ancients, and the siege trains of modern artillerists.

Admitting then that impressions from type could be taken on both sides of a sheet, the mere fact that a single leaf was so printed in two editions of the same ancient work, is no proof whatever that the said impressions were made with a press such as was used by the printers at Mentz, the invention of which became a necessity in order to complete the Typographic Art. What it does prove, is, that the printer of the Speculum, with the appliances then at his command, preferred the easier, simpler, and safer method of printing on one side only.

But in the consideration of this subject there are other questions which ought not to be overlooked;—e. g. For what special purposes, and for whom, were the Donatuses and Block-books printed? Certainly not for the public at large. The Donatuses,—small elementary Latin grammars,—would be for a few of the superior monastic schools of the day; and the Biblia Pauperum, Ars Memorandi, Speculum Salutis, &c., were avowedly for “the assistance of poor preachers,”—“propter pauperes predicatores.” Editions of these works would therefore be small in number, and the time taken in their production would not be an object of much account. Mr. Ottley supposes (p. 283) that they would not exceed 20, 40, or 60 copies each. The market for them, consequently, might very easily be overstocked. Now as regards the most ancient Speculums printed in Holland, it is by no means improbable, that, as two editions in Latin and two in Dutch followed one another in quick succession, the printer did overstock the market, and had to cease work in consequence. It is at any rate certain, that the cuts were laid aside for a length of time, and were not reprinted until 1483, when Veldener, then printing at Culembourg, issued an edition in small 4to., sawing the pictorial headings in two in order to suit his purpose. This branch of the subject is of some importance in its bearings on the question of the origin of block printing in Holland, and will be more fully considered in a subsequent chapter.

Gutenberg we may fairly presume, (relying upon documentary evidences for the presumption), aware of the nature and extent of the demand that existed for such productions, foresaw how a new public want might be created by means of new inventions for further developing the new-born art. Separable types with the then known methods for making use of them, were but as acorns in comparison with stately full grown oaks,—but sickly stunted bushes, instead of luxuriant vines, from whose wide-spreading boughs the thickly clustered bunches of ripe, refreshing, life-giving fruit should be sought for far and near. How to excite and satisfy this want was the problem constantly revolving in his mind. It soon became evident, that a machine capable of rapidly striking off copies of works that were to be set up in types, was a necessity of the case; and to meet that necessity all his energies were bent. The time and money spent in working out his ideas,—in constructing the original Letter-press,—is shewn in the evidence which has been preserved, the bearing of which seems to have been hitherto strangely misapprehended.

“The earliest printing press” says Mr. Charles Knight, “was nothing more than a common screw-press,—such as a cheese press, or a napkin press.” He gives no authority for the assertion, but he immediately adds, thereby largely qualifying it,—“with a contrivance for running the forme of types under the screw after the forme was inked.”[41] In this ‘contrivance,’ with some few others, which were its necessary adjuncts,—however simple the matter may seem now-a-days to eyes accustomed to look upon machinery and mechanical appliances of all kinds and varieties,—lay the chief difficulty. The screw, from its power and adjustability, would naturally suggest itself as the appliance best suited to effect the purpose aimed at. But how to contrive to make the screw an effective agent in producing impressions from types, was the question which Gutenberg had to consider. His separable letters were ready to his hand; but without the press, which he had yet to make, and to find out how to make, they were as useless to him as unstrung harp-strings are unmusical until they are keyed and stretched and tuned, and made to emit soul-thrilling harmonies at the master touch of the fingers of the finished harpist.

Satisfied with the result of his experiments as to types, a new series of experiments had to be entered upon before he could hope to realize his expectations in regard to them. These he carried on in his residence at St. Arbogaste, in the suburbs of Strasburg.

In his business as a stone polisher, we learn, from his own declarations, that several years previous to 1436, he had taught that art to one Andrew Dritzehen. Subsequently, “a long time afterwards,” he engaged in the manufacture of looking-glasses, along with Johan Riffe, the prefect or mayor of Lichtenow. Andrew Dritzehen, learning this, requested Gutenberg to teach him that art as well; and a similar request was at the same time made on behalf of Andrew Heilman, by his brother Anthonie. Upon their entering into an agreement, whereby they bound themselves to pay him certain premiums for so doing, Gutenberg complied with their requests. But one year, after making preparations for attending the fair held at the time of the pilgrimages to the shrines at Aix-la-Chapelle, the journey was suddenly put off until the year following, owing to the postponement of the fair. Deprived of the opportunity of increasing their gains, the two Andrews, with enforced unprofitable leisure upon their hands, made an unexpected visit to St. Arbogaste, where they found Gutenberg busily engaged upon matters, the secret of which he seemed determined to keep to himself. After much importunity, however, he consented to reveal to them, upon certain conditions, “all the wonderful and secret arts that he knew, without any exception.” The conditions were, that they on the one side, and he and Riffe on the other, should cancel the existing agreement, and enter into a new one; that they should conjointly pay to him the sum of 250 florins, making, with 160 previously paid for being taught the art of making looking-glasses, 410 in all; that 100 was to be paid immediately, and the remainder at stated periods; and that their share of the profits was to be one-third, the remaining two-thirds being divided between Gutenberg and Riffe. It was further agreed, that the partnership for carrying on “the wonderful art,” should be for a term of five years; but that if any one of the partners died before the expiration of that period, the survivors should, at its expiration, pay to the representatives of the deceased the sum of one hundred florins, retaining in their own hands “all the utensils and implements of the art, and all works perfected by the instruments.”

This partnership was entered into about the year 1436. Upon the completion of the agreement the implements and materials for the new art were removed from St. Arbogaste to the house of Andrew Dritzehen, with whom, as perhaps the ablest mechanic in the association, Gutenberg thenceforth carried on his experiments. These seem to have nearly approached completion, when Dritzehen was unfortunately seized with an illness which ended fatally. His death took place in 1438, before the expiration of the term allotted for the partnership, and while he was still indebted to Gutenberg in the sum of eighty-five florins. Gutenberg, as soon as he heard of his death, sent his servant Laurence Beildeck, to Nicholas Dritzehen, the brother of the deceased, and requested that no one might be admitted into the workshop, lest the secret should be discovered, or the materials be stolen. But they had already disappeared; and this fraud, as well as the claims of George and Nicholas Dritzehen to succeed to their brother’s share, produced a lawsuit with the surviving partners.

In the prosecution of this lawsuit, out of a large number of witnesses summoned, the depositions of sixteen were taken; and in the following extracts from the evidence of the most material, we may gather what the secret was which Gutenberg was so desirous to preserve.