It must not be supposed, however, that the author in Rome depended solely upon verbal utterance for the circulation of his ideas. Nothing could be further from the fact. The publishing no less than the writing of books was a recognised form of business and one that apparently flourished.
Notwithstanding the entire loss of all the books produced in Rome in the early days, we are supplied with tolerably full information as to the making and use of books there during the later period of the republic, and throughout the empire.
The private library discovered at Herculaneum gives a perfectly clear idea of the way in which the books were kept in an ordinary house. This library contained seventeen hundred books. It was so small a room, however, that all its shelves could be reached from its centre. The books themselves, consisting of rolls, were contained in round cases called capsæ, and we have the further evidence of various statues and pictures, as well as written descriptions, to prove that this was the usual method of caring for manuscripts.
The books of this period were always in rolls, never folded after the modern method. This applies not merely to papyrus books, but to the parchment ones also. Generally the strip of papyrus or parchment was inserted at one end into a slit in a reed or cane about which the manuscript was rolled as written. Usually a corresponding cane was supplied at the other end after the book was completed, so that the book could be rolled either way, thus greatly facilitating the reading. Presumably the book as ordinarily kept ready for use would be rolled on the lower reed, so that anyone unrolling it began at once with the first column, the columns being arranged transversely. A tag or label was usually attached to the manuscript, and these tags are represented in the paintings on the walls of Pompeii as projecting from the cases in which the books are stored. The length of a papyrus or parchment strip varied indefinitely, but it appears to have been usual to write an entire book of any given work on a single strip. The relatively short books into which most classical works were divided facilitated this method; or perhaps it became customary to divide works into small books for the convenience of the scribe, rather than because of any logicality in the method itself.
It appears that in the later Roman times it was quite the fashion to have a library in every ordinary house, and some of these libraries attained very respectable proportions. Thus it is said that the grammarian Epaphroditus had a library of thirty thousand volumes, and that Sammanicus Serenus had one of sixty-two thousand volumes. The fact that Augustus confiscated two thousand copies of the pseudo-sibylline oracles testifies to the wide prevalence of the reading, or at least the book-buying, habit. No doubt this distinction between the buying and the reading of books should be clearly drawn in the case of the Romans as elsewhere. Still, it will not do to draw too sweeping conclusions from the sneers of Seneca and Cicero, which are so often quoted as implying that the Romans bought books as ornaments, rather than for their contents. Doubtless the reproach was true then as now of a large number of purchasers; still, the making and the selling of books must always imply the existence of a taste for books, and such a fashion could never have come into vogue unless a very large number of people were actually book readers. In point of fact, the book business in Rome assumed proportions that seem almost incredible. Book stores were numerous in the more frequented parts of the city, and, as far as one can learn, the trade flourished quite in the modern fashion. Within the shop the rolls were ranged on shelves for the inspection of the would-be purchaser, and outside on pillars were advertised the names of the authors represented.
Naturally enough, when private libraries were the fashion there were numerous public libraries as well. According to Publius Victor, there were no fewer than twenty-nine of these public libraries in Rome. Asinius Pollio, the friend of Cæsar, and the famous patron of literature of his time, who died in the year 6 B.C., was credited with being the founder of the first public library, although there is a tradition that Orielus Paullus, the conqueror of Macedonia, brought back with him to Rome a large collection of books in 168 B.C. Be that as it may, there probably was no very great taste for reading in Rome at that early period, and it was not until the time of Augustus that public libraries began to assume real importance.
Augustus himself, carrying out the intention of Julius Cæsar, founded two public libraries, one called the Octavian, and the other the Palatine. From that time the founding of public libraries became a fashion with the emperors, Tiberius, Vespasian, Domitian, and Trajan successively adding to the number, the most famous collection of all being the Ulpian library of Trajan. No available data have come down to us as to the exact size of these libraries, but the respectable proportions of some of the private collections make it a safe inference that some, at least, of these public libraries must have contained hundreds of thousands of books, since we can hardly suppose that a private library would be allowed to outrival the imperial collections.
When one reflects on this prevalence of books, the very natural query arises as to how they were produced, and the answer throws a vivid light on the social conditions in Rome. The enormous output of books, almost rivalling the productions of the modern press, was possible solely because of the great number of slaves in Rome. Book-making was a profession, but it was a profession apparently followed almost exclusively by slaves, who were known as librarii. These educated slaves were usually Greeks, and a large publishing house, of which there were several in Rome, would keep a great number of them for purposes both of making the materials for books, and of transcribing the books themselves.
It is known that shorthand was practised extensively in Rome, and it has been supposed that a very large number of the current books were written in this abbreviated hand. This supposition, however, appears more than doubtful, for it is hardly to be supposed that the general public took the trouble to learn the Tironian system, by which name the shorthand script was known; Tiron, the secretary of Cicero, being commonly, though no doubt incorrectly, credited with its invention. As to the latter point, there are various references in the Greek classical authors to the practice of shorthand in ancient times. It is said even that Xenophon took down the lectures of Socrates in this way, and whether or not that statement is true, the existence of the rumour is in itself evidence of the prevalence of the custom from an early day. Very probably Tiron developed a modified and greatly improved system of shorthand writing, and doubtless this became popular, since lexicons were written interpreting the Tironian script in terms of ordinary Latin. But, as has been said, all this does not make it probable that the average reader understood the script, and it seems much more likely that the popular authors were represented in the ordinary script, subject, however, to numerous abbreviations. The writers who were most in vogue in imperial Rome are said to have been Ovid, Propertius, and Martial among the satirists; Homer, Virgil, and Horace among the poets; and Cicero, Livy, and Pliny among prose writers. It is alleged that the works of most of these were in every private collection. Of all this great store of literary treasures not a single line has been preserved in the original manuscript, save only a few rolls from the library at Herculaneum, and most of these are charred and damaged beyond recognition.
Thanks to the use of slave labour, it would appear that the Roman publisher was able, not merely to put out large editions of books, but to sell these at a very reasonable price. According to a statement of Martial himself, a very good copy of the first book of his epigrams could be purchased for five denarii. This presumably must refer to the cheapest edition, probably a papyrus roll, though no definite data as to the relative cost of papyrus and parchment are available. Naturally, there were more expensive editions put out for those who could afford them. It was customary, for example, to tint the back of the parchment roll with purple; at a later day the inscribed part itself was sometimes tinted with the same colour, and this custom also may have prevailed as early as the Roman time. Certain books were illustrated with pictures, as appears from a remark of Pliny; but this practice was undoubtedly very exceptional. It may not have been unusual, however, to ornament or emphasise portions of the manuscript by using red ink, for the ink wells illustrated in the paintings of Pompeii are often shown to be double, and the presumable object of this was to facilitate the use of ink of two colours.