Ladies and Gentlemen,--I have undertaken to speak to you this evening on what is called the Science of History. I fear it is a dry subject; and there seems, indeed, something incongruous in the very connection of such words as Science and History. It is as if we were to talk of the colour of sound, or the longitude of the rule-of-three. Where it is so difficult to make out the truth on the commonest disputed fact in matters passing under our very eyes, how can we talk of a science in things long past, which come to us only through books? It often seems to me as if History was like a child's box of letters, with which we can spell any word we please. We have only to pick out such letters as we want, arrange them as we like, and say nothing about those which do not suit our purpose. I will try to make the thing intelligible, and I will try not to weary you; but I am doubtful of my success either way. First, however, I wish to say a word or two about the eminent person whose name is connected with this way of looking at History, and whose premature death struck us all with such a sudden sorrow. Many of you, perhaps, recollect Mr. Buckle as he stood not so long ago in this place. He spoke more than an hour without a note--never repeating himself, never wasting words; laying out his matter as easily and as pleasantly as if he had been talking to us at his own fireside. We might think what we pleased of Mr. Buckle's views, but it was plain enough that he was a man of uncommon power; and he had qualities also--qualities to which he, perhaps, himself attached little value, as rare as they were admirable. Most of us, when we have hit on something which we are pleased to think important and original, feel as if we should burst with it. We come out into the book-market with our wares in hand, and ask for thanks and recognition. Mr. Buckle, at an early age, conceived the thought which made him famous, but he took the measure of his abilities. He knew that whenever he pleased he could command personal distinction, but he cared more for his subject than for himself. He was contented to work with patient reticence, unknown and unheard of, for twenty years; and then, at middle life, he produced a work which was translated at once into French and German, and, of all places in the world, fluttered the dovecotes of the Imperial Academy of St. Petersburg.