The account of the reigns of Edward VI., Mary, and Elizabeth is chiefly drawn from the 'State Papers, _Ireland_'--all documents preserved in the Public Record Office and calendared by Mr. Hans Claude Hamilton. How excellently the editor has done his work can only be appreciated by one who has entered into his labours as closely as I have done. Except where a document has already been printed, I have nearly always referred to the original MS. All documents cited by date or number without further description must be understood as being in this collection. The late Dr. Brewer's calendar of the Carew MSS. at Lambeth often fills up gaps in the greater series; it is referred to as _Carew_. Many papers, both in Fetter Lane and at Lambeth, are copies; but their authenticity is not disputed. The Carew calendar is on so full a plan that it has not been thought necessary to consult the manuscripts; indeed, except for local purposes, it is not likely that they will be much consulted in the future. Other collections are referred to in their places, but it may be well to mention specially the journal of the Irish (Kilkenny) Archæological Society, whose editor, the Rev. James Graves, has done as much as any man to lay a broad foundation for Irish history. O'Donovan's splendid edition of the 'Four Masters' has generally been consulted for the Irish version of every important fact. O'Clery and his fellow-compilers wrote under Charles I., and are not therefore strictly contemporary for the Tudor period. They appear to have faithfully transcribed original annals, but to this one important exception must be made. The old writers never hesitated to record facts disagreeable to the Church; the later compilers were under the influence of the counter-reformation which produced Jesuitism. Making some allowance for this, the 'Four Masters' must be considered fair men. Michael O'Clery spent much time at Louvain, but he wrote in Ireland, and had native assistants. Philip O'Sullivan, on the other hand, was a Spanish officer, and published his useful but untrustworthy 'Compendium' at Lisbon. The 'Annals of Lough Cé' are preferable in some ways to the 'Four Masters,' but they do not cover so much ground. All the native annalists are jejune to an exasperating degree. Genealogy seems to have been the really important thing with them, and they throw extremely little light on the condition of the people. We are forced therefore to rely on the accounts, often prejudiced and nearly always ill-informed, of English travellers and officials.