The notes on sat. X were written, and nearly all stereotyped, in the summer of 1871; those on great part of sat. VIII in 1872, the remainder to the end of sat. XIII in 1877; the last three satires have been added in the last two months.

I give these details, partly to explain any apparent neglect of materials lately brought to light, and partly as an example of the use of our long vacation. Many of us are unable during term to engage in any work requiring prolonged attention. Even in Bentley's time, Cambridge could only make hay when the sun shone.

I have to thank several friends for help. Mr Munro supplies many notes (marked H. A. J. M.) and some emendations. I have also profited by communications from the late Professor Conington (J. C.), the Rev. H. R. Bailey (H. R. B.), the Public Orator (J. E. S.), and my brother (J. B. M.). I have, as will be seen, examined the manuscript notes of Stanley, Hadr. Beverland, John Taylor, Markland, Böttiger and John Mitford. From the friends of Otto Jahn I learn that his commentary was only completed for a few satires, and that he intended to re-write the whole. In general he trusted to memory, but for Juvenal and Persius had formed collectanea. It is much to be hoped that his labours will be given to the world, for few scholars have ever lived so well furnished with the historical and antiquarian learning required in an editor of Juvenal: his library was perhaps the best working collection that the world has seen in its department.