Especially have I cause to remember the help you gave me, by your prudent counsels and your anxious sympathy, when I was called over to Ireland to initiate a great Catholic institution. From others also, ecclesiastics and laymen, I received a hearty welcome and a large assistance, which I ever bear in mind; but you, when I would fill the Professors' chairs, were in a position to direct me to the men whose genius, learning, and zeal became so great a part of the life and strength of the University; and, even as regards those whose high endowments I otherwise learned, or already knew myself, you had your part in my appointments, for I ever tried to guide myself by what I had gained from the conversations and correspondence which you had from time to time allowed me. To you, then, my dear Lord, more than to any other, I owe my introduction to a large circle of friends, who faithfully worked with me in the course of my seven years of connexion with the University, and who now, for twice seven years since, have generously kept me in mind, though I have been out of their sight. There is no one, then, whom I more intimately associate with my life in Dublin than your Lordship; and thus, when I revive the recollections of what my friends there did for me, my mind naturally reverts to you; and again in making my acknowledgments to you, I am virtually thanking them. That you may live for many years, in health, strength, and usefulness, the centre of many minds, a blessing to the Irish people, and a light in the Universal Church, is, MY DEAR LORD, The fervent prayer of Your affectionate friend and servant, JOHN HENRY NEWMAN. BIRMINGHAM, _October 23, 1872._ I. LECTURES ON THE HISTORY OF THE TURKS, IN THEIR RELATION TO EUROPE. PREFATORY NOTICE. The following sketch of Turkish history was the substance of Lectures delivered in the Catholic Institute of Liverpool during October, 1853. It may be necessary for its author to state at once, in order to prevent disappointment, that he only professes in the course of it to have brought together in one materials which are to be found in any ordinarily furnished library. Not intending it in the first instance for publication, but to answer a temporary purpose, he has, in drawing it up, sometimes borrowed words and phrases, to save himself trouble, from the authorities whom he has consulted; and this must be taken as his excuse, if any want of keeping is discernible in the composition. He has attempted nothing more than to group old facts in his own way; and he trusts that his defective acquaintance with historical works and travels, and the unreality of book-knowledge altogether in questions of fact, have not exposed him to superficial generalizations.