Without affectation of any erudite speculative knowledge respecting the origin and progress of language from the first articulate sounds of the human voice to words, symbolic signs, hieroglyphic characters, letters, alphabets, inscriptions, writings, and diversities of tongues, we shall in business-like manner commence with the elementary raw materials of writing and book-making in the order of their use. Stone, wood, metal, in which letters were cut with a Sharp instrument, were the earliest materials. The art of forming letters on lead was known when the Book of Job was written, as appears from the memorable sentence "Oh, that my words were now written that they were printed in a book, that they were graven with a pen and lead in the rocks for ever!" Sheets of lead were used to grave upon; and inscriptions cut in rocks or smooth stones in Arabia, where Lot is supposed to have lived, have been discovered. But even more primitive materials were the barks and leaves [Footnote 23] of trees prepared for the purpose. Shepherds, it is said, wrote their simple songs by means of an awl, or some similar instrument, on straps of leather twisted round their crooks. Even in the days of Mahomet, shoulder-blades of mutton, according to Gibbon's account, were used by the disciples of Mahomet for recording his supposed inspirations. The introduction of _papyrus_ from Egypt into Greece produced great results, in increasing the diffusion of writings, and making books known by many for the first time. Previously, the Greeks had used the materials which we have enumerated. Vellum was brought into use about two centuries later; but not commonly, on account of its brittleness. Its introduction is attributable to a curious incident, remarkably illustrative of the fact that the protectionist system was acted upon at a remote age, when political economy was not understood, and the good effects of free trade were unappreciated. Ptolemy Philadelphus (B.C. 246, to whom the Septuagint version of the Hebrew Testament is due) had prohibited the exportation of papyrus from Egypt, to prevent Eumenes, king of Pergnmos, from obtaining that material, in hopes of preventing him from multiplying MSS.; for Eumenes like Ptolemy, was a patron of learning, and formed libraries. This unworthy jealousy on the part of Ptolemy was deservedly defeated by Eumenes, who ascertained that parchment would be a good substitute for papyrus. This far less abundant material was, however, used before; but Eumenes so improved the process of its preparation, that he may be almost termed the inventor of parchment. Vellum--the prepared skin of a calf--probably was brought into use at the same time; the deep yellow which both materials had was subsequently removed by some process {106} adopted at Rome, which made it white. The introduction of parchment led to the present form of books and it became the general material for writing upon not long afterward, though vellum was employed in all state deeds