The ink, says Montfaucon, which we see in the most ancient Greek manuscripts, has evidently lost much of its pristine blackness; yet neither has it become altogether yellow or faint, but is rather tawny or deep red, and often is not far from a vermilion. This appears in many manuscripts of the fourth and following centuries. Yet there are some written with an ink more skilfully composed, which have preserved their first blackness. It has happened also, when the surface of the parchment, instead of being polished, was spongy, that the ink has become yellow. In all the bombycine manuscripts, owing to the nature of the material, a separation of the parts of the ink has taken place; the grosser part standing on the surface, while the finer has penetrated the substance of the paper. Inks of various colours, especially red, purple, and blue, and also gold and silver inks, were much used by the ancients: few manuscripts are destitute of some such ornamental diversities of colour; and many are splendidly recommended to the eye by these means. There was a purple ink, which was appropriated to the use of the emperors, and was called the sacred encaustic; but a dye, not easily distinguished from that which appears upon some imperial charters, is very commonly found in ancient books. And it is said that they must have had a nice sight who could so distinguish between the two as to have detected a violation of the law on this subject. The subscription commonly seen at the end of Greek manuscripts, containing the name of the transcriber, with the year, month, day, indiction, and sometimes the hour when the copy was finished, are most often written in the imperial colour, especially in the times of the lower empire; or if not in that ink, in one that cannot now be distinguished from it. The titles of chapters were frequently written alternately in red and cerulean: marginal notes, most often in the latter colour. Books of a later date often have all the capitals of a bright green. The Greeks, more frequently than the Romans, used golden ink; and many Greek manuscripts are extant in which, not the titles and capitals only, but whole pages, are elegantly written in a pigment of the precious metals: but it was rather upon ecclesiastical than profane literature that this honour was bestowed. The works of the Fathers, chiefly, were so adorned, and sometimes the Gospels: there is extant a copy of the four Evangelists, written upon purple parchment, in letters of gold throughout. The practice of using gold and silver inks was so common, that the manufacture of them became a distinct business; and those who were skilled in this sort of writing seldom followed any other employment than that of inserting the titles, capitals, or emphatic words, in copies that had been executed by inferior hands. Several curious recipes for the preparation of the precious pigments are given by the later Greek waiters.