Mr. President and Gentlemen:--Along with your kindness there comes to me a great unkindness from Fate; for, now that, above all times in my life, I need full command of what powers of speech I possess, disturbed health so threatens to interfere with them that I fear I shall very inadequately express myself. Any failure in my response you must please ascribe, in part at least, to a greatly disordered nervous system. Regarding you as representing Americans at large, I feel that the occasion is one on which arrears of thanks are due. I ought to begin with the time, some two-and-twenty years ago, when my highly valued friend Professor Youmans, making efforts to diffuse my books here, interested on their behalf the Messrs. Appleton, who have ever treated me so honourably and so handsomely; and I ought to detail from that time onward the various marks and acts of sympathy by which I have been encouraged in a struggle which was for many years disheartening. But, intimating thus briefly my general indebtedness to my numerous friends, most of them unknown, on this side of the Atlantic, I must name more especially the many attentions and proffered hospitalities met with during my late tour, as well as, lastly and chiefly, this marked expression of the sympathies and good wishes which many of you have travelled so far to give, at great cost of that time which is so precious to the American. I believe I may truly say, that the better health which you have so cordially wished me, will be in a measure furthered by the wish; since all pleasurable emotion is conducive to health, and, as you will fully believe, the remembrance of this event will ever continue to be a source of pleasurable emotion, exceeded by few, if any, of my remembrances.