PALIMPSEST. The custom of removing writing from the surface of the material on which it had been inscribed, and thus preparing that surface for the reception of another text, has been practised from early times. The term palimpsest (from Gr. iraXiv, again, and xj/do}, I scrape) is used by Catullus, apparently with reference to papyrus; by Cicero, in a passage wherein he is evidently speaking of waxen tablets; and by Plutarch, when he narrates that Plato compared Dionysius to a l3il3lov iraSiixxpTqaTOV, in that his tyrant nature, being dvctKirXvTOS. showed itself like the imperfectly erased writing of a palimpsest MS. In this passage reference is clearly made to the washing off of writing from papyrus. The word TraXt/ii^rjcrTos can only in its first use have been applied to MSS. which were actually scraped or rubbed, and which were, therefore, composed of a material of sufficient: strength to bear the process. In the first instance, then, it might be applied to waxen tablets; secondly, to vellum books. There are stOl to be seen, among the surviving waxen tablets, some which contain traces of an earlier writing under a fresh layer of wax. Papyrus could not be scraped or rubbed; the writing was washed from it with the sponge. This, however, could not be so thoroughly done as to leave a perfectly clean surface, and the material was accordingly) only used a second time for documents of an ephemeral or common nature. To apply, therefore, the title of palimpsest to a MS. of this substance was not strictly correct; the fact that it was so applied proves that the term was a common expression. Traces of earlier writing are very rarely to be detected in extant papyri. Indeed, the supply of that material must have been so abundant that it was hardly necessary to go to the trouble of preparing a papyrus, already used, for a second writing.
In the early period of palimpsests, vellum MSS. were no doubt also washed rather than scraped. The original surface of the material, at all events, was not so thoroughly defaced as was afterwards the case. In course of time, by atmospheric action or other chemical causes, the original writing would to some extent reappear; and it is thus that so many of the capital and uncial palimpsests have been successfully deciphered. In the later middle ages the surface of the vellum was scraped away and the writing with it. The reading of the later examples is therefore very difficult or altogether impossible. Besides actual rasure, various recipes for eft'acing the writing have been found, such as to soften the surface with milk and meal, and then to rub with pumice. In the case of such a process being used, total obliteration must almost inevitably have been the result. To intensify the traces of the original writing, when such exist, various chemical reagents have been tried with more or less success. The old method of smearing the vellum with tincture of gall restored the writing, but did irreparable damage by blackening the surface, and, as the stain grew darker in course of time, by rendering the text altogether illegible. Of modern reagents the most harmless appears to be hydro sulphate of ammonia; but this also must be used with caution.
The primary cause of the destruction of vellum MSS. by wilful obliteration was, it need hardly be said, the dearth of material. In the case of Greek MSS., so great was the consumption of old codices for the sake of the material, that a synodal decree of the year 691 forbade the destruction of MSS. of the Scriptures or the church fathers — imperfect or injured volumes excepted. The decline of the vellum trade also on the introduction of paper caused a scarcity which was only to be made good by recourse to material already once used. Vast destruction of the broad quartos of the early centuries of our era took place in the period which followed the fall of the Roman Empire. The most valuable Latin palimpsests are accordingly found in the volumes which were remade from the 7th to the 9th centuries, a period during which the large volumes referred to must have been still fairly numerous. Late Latin palimpsests rarely yield anything of value. It has been remarked that no entire work has been found in any instance in the original text of a palimpsest, but that portions of many works have been taken to make up a single volume. These facts prove that scribes were indiscriminate in supplying themselves with material from any old volumes that happened to be at hand.
An enumeration of the different palimpsests of value is not here possible (see Wattenliach, Sihriflweseri, 3r(l ed., pp. 299-317;; but a few may be mentioned of which facsimiles are accessible. The MS. in the Bibliotheque Nationale, Paris, known as the Codex Ephraemi, containing portions of the Old and New Testaments in Greek, attributed to the 5ih century, is covered with works of Ephraem Syrus in a hand of the 12th century (ed. Tischendorf, 1843, 1S45). Among the Syriac MSS. obtained from the Nitrian desert in Egypt, and now deposited in the British Museum, some important Greek texts have been recovered. A volume containing a work of Severus of Antioch of the beginning of the 9th century is written on palimpsest leaves taken from MSS. of the Iliad of Homer and the Gospel of St Luke, both of the 6th century (Cat. inc. MSS. vol. i., pis. 9, 10), and the Elements of Euclid of the 7th or nth century. To the same collection belongs the double palimpsest, in which a text of St John Chrysostom, in Syriac, of the 9th or 10th century, covers a Latin grammatical treatise in a cursive hand of the 6th century, which in its turn has displaced the Latin annals of the historian Granius Licinianus, of the 5th century (Cat. Anc. MSS. ii., pis. i, 2). Among Latin palimpsests also may be noticed those which have been reproduced in the Exempla of Zangemeister and Wattenbach. These are — the Ambrosian Plautus, in rustic capitals, of the 4th or 5th century, re-written with portions of the Bible in the 9th century (pi. 6); the Cicero De repiihlica of the Vatican, in uncials, of the 4th century, covered l)y St .'ugustine on the Psalms, of the 7th century (pi. 17; Pal. Soc, pi. 160); the Codex Theodosianus of Turin, of the 5th or 6th century (pi. 25); the Fasti Consulates of Verona, of a.d. 486 (pi. 29); and the Arian fragment of the Vatican, of the 5th century (pi. 31). Most of these originally belonged to the mona.stery of Bobbio, a fact which gives some indication of the great literary wealth of that house. By using skill and judgment, with a favouring light, photography may be often made a useful agent in the decipherment of obscure palimpsest te.ts. (E. M. T.)
PALINDROME (Gr. πάλιν, again, and δρóμος, a course), a verse or sentence which runs the same when read either backwards or forwards. Such is the verse—
Roma tibi subito motibus ibit amor;
or
Signa te, signa, temere me tangis et angis;
or
νίψον ἀνομήματα μὴ μόναν ὄψιν.
Some have refined upon the palindrome, and composed verses each word of which is the same read backwards as forwards: for instance, that of Camden—
Odo tenet mulum, rnadidam mappam tenet Anna,
Anna tenet mappam madidam, mulum tenet Odo.
The following is still more complicated, as reading in four ways—upwards and downwards as well as backwards and forwards:—
| S A T O R |
| A R E P O |
| T E N E T |
| O P E R A |
| R O T A S |
PALINGENESIS (Gr. πάλιν, γένεσις, becoming, birth),
a term used in philosophy, theology and biology. In philosophy
it denotes in its broadest sense the theory (e.g. of the Pythagoreans)
that the human soul does not die with the body but
is " born again " in new incarnations. It is thus the equivalent
of metempsychosis (q.v.). The term has a narrower and more
specific use in the system of Schopenhauer, who applies it to
his doctrine that the will does not die but manifests itself afresh
in new individuals. He thus repudiates the primitive metempsychosis
doctrine which maintains the reincarnation of the particular
soul. The word " palingenesis " or rather " palingenesia "
may be traced back to the Stoics, who used the term for the
continual re-creation of the universe by the Demiurgus (Creator)
after its absorption into himself. Similarly Philo speaks of
Noah and his sons as leaders of a " renovation " or " re-birth "
of the earth. Josephus uses the term of the national restoration
of the Jews, Plutarch of the transmigration of souls, and
Cicero of his own return from exile. In the New Testament
the properly theological sense of spiritual regeneration is found,
though the word itself occurs only twice; and it is used by the
church fathers, e.g. for the rite of baptism or for the state of
repentance. In modern biology (e.g. Haeckel and Fritz Müller)
