Decidedly the old world has left no more noble relic of criticism. Yet the date of the book is obscure, and it did not come into the hands of the learned in modern Europe till Robertelli and Manutius each published editions in 1544. From that time the Treatise has often been printed, edited, translated; but opinion still floats undecided about its origin and period. Does it belong to the age of Augustus, or to the age of Aurelian? Is the author the historical Longinus—the friend of Plotinus, the tutor of Porphyry, the victim of Aurelian,—or have we here a work by an unknown hand more than two centuries earlier? Manuscripts and traditions are here of little service. The oldest manuscript, that of Paris, is regarded as the parent of the rest. It is a small quarto of 414 pages, whereof 335 are occupied by the “Problems” of Aristotle. Several leaves have been lost, hence the fragmentary character of the essay. The Paris MS. has an index, first mentioning the “Problems” and then ΔΙΟΝΥΣΙΟΥ Η ΛΟΓΓΙΝΟΥ ΠΕΡΙ ΥΨΟΥΣ, that is, “The work of Dionysius, or of Longinus, about the Sublime.”
On this showing the transcriber of the MS. considered its authorship dubious. Supposing that the author was Dionysius, which of the many writers of that name was he? Again, if he was Longinus, how far does his work tally with the
