Besides the broad and palpable distinction between uncial and cursive letters, persons who have had much experience in the study of manuscripts are able to distinguish those of either class from one another in respect of style and character; so that the period at which each was written can be determined within certain inconsiderable limits. After the tenth century many manuscripts bear dates, and such become standards to which we can refer others resembling them which are undated. But since the earliest dated Biblical manuscript yet discovered (Cursive Evan. 481, see below Chap. VII) bears the date May 7, A.D. 835, we must resort to other means for estimating the age of more venerable, and therefore more important, copies. By studying the style and shape of the letters on Greek inscriptions, Montfaucon was led to conclude that the more simple, upright, and regular the form of uncial letters; the less flourish or ornament they exhibit; the nearer their breadth is equal to their height; so much the more ancient they ought to be considered. These results have been signally confirmed by the subsequent discovery of Greek papyri in Egyptian tombs especially in the third century before the Christian era; and yet further from numerous fragments of Philodemus, of Epicurus, and other philosophers, which were buried in the ruins of Herculaneum in A.D. 79 (“Fragmenta Herculanensia,” Walter Scott). The evidence of these papyri, indeed, is even more weighty than that of inscriptions, inasmuch as workers in stone, as has been remarked, were often compelled to prefer straight lines, as better adapted to the hardness of their material, where writings on papyrus or vellum would naturally flow into curves. 10. While we freely grant that a certain tact, the fruit of study and minute observation, can alone make us capable of forming a trustworthy opinion on the age of manuscripts; it is worth while to point out the _principles_ on which a true judgement must be grounded, and to submit to the reader a few leading facts, which his own research may hereafter enable him to apply and to extend. The first three plates at the beginning of this volume represent the Greek alphabet, as found in the seven following monuments: