When I resumed my work I began on the two remaining exhibits. The first was a sheaf of some thirty pages torn out of some black-letter law-book. The only remarkable thing about it was that every page seemed covered with dots--hundreds, perhaps thousands on each page. The second was quite different: a narrow slip of paper somewhat longer than a half sheet of modern note paper, covered with an endless array of figures in even lines, written small and with exquisite care. The paper was just such a size as might be put as marker in an ordinary quarto; that it had been so used was manifest by the discolouration of a portion of it that had evidently stuck out at the top of the volume. Fortunately, in its long dusty rest in the bookshelf the side written on had been downward so that the figures, though obscured by dust and faded by light and exposure to the air, were still decipherable. This paper I examined most carefully with a microscope; but could see in it no signs of secret writing beyond what might be contained in the disposition of the numbers themselves. I got a sheet of foolscap and made an enlarged copy, taking care to leave fair space between the rows of figures and between the figures themselves. Then I placed the copy of figures and the first of the dotted pages side by side before me and began to study them. I confined my attention at first chiefly to the paper of figures, for it struck me that it would of necessity be the simpler of the two systems to read, inasmuch as the symbols should be self-contained. In the dotted letters it was possible that more than one element existed, for the disposition of significants appeared to be of endless variety, and the very novelty of the method--it being one to which the eyes and the senses were not accustomed--made it a difficult one to follow at first. I had little doubt, however, that I should ultimately find the dot cipher the more simple of the two, when I should have learned its secret and become accustomed to its form. Its mere bulk made the supposition likely that it was in reality simple; for it would be indeed an endless task, to work out in this laborious form two whole sheets of a complicated cipher. Over and over and over again I read the script of numbers. Forward and backward; vertically; up and down, for the lines both horizontal and vertical were complete and exact, I read it. But nothing struck me of sufficient importance to commence with as a beginning. Of course there were here and there repetitions of the same combination of figures, sometimes two, sometimes three, sometimes four together; but of the larger combinations the instances were rare and did not afford me any suggestion of a clue! So I became practical, and spent the remainder of my work-time that day in making by aid of my microscope an exact but enlarged copy, but in Roman letters, of the first of the printed pages.