"MY DEAR SIR,--Your very kind and flattering letter of the first instant would have been sooner acknowledged but for my having had the pleasure of having with me Mr. and Mrs. Singleton and Miss McDuffie, and also your son, the colonel, and Angelica, and since they left me I have been so unwell as to be incapable of writing. And I am still too much indisposed to do much more than to express the gratification I derived from its perusal and to receive your commendation of my letter to Mr. Richards, which gave me the more pleasure, as I found my letter would disappoint him and other friends from its treating on newspaper and common-place topics, accessible to all, instead of giving facts and anecdotes not generally known, and which had become particularly well known to me, from the deep interest I have long taken in the subject, from my residence in Illinois at the period when efforts were made to make it a slave-holding State, and from my intimate acquaintance with most of the great men of the country. But I was sensible of not being able to do justice to the information I possessed, without a reference to documents not accessible to me at Schooleys Mountain. "Your son John having requested me to send him a copy of a letter written by Mr. Jefferson to me in August, 1814, on the subject of slavery, and also a communication made by me to the _National Intelligencer_, and published in that paper Feb. 14, 1838, in relation to the abolition of slavery in the District of Columbia, I have since my return home from my summer excursion enclosed them to him to 91 White Street, New York, and hope he has received them, as I think the republication of Mr. Jefferson's letter at this time will do much good.[15] "In explanation of some parts of Mr. Jefferson's letter, I ought to add that it was written in reply to one from me, informing him of my repugnance to holding slaves, and my determination to leave Virginia unless I could see some prospect of abolishing slavery in the State, and urging him to step forward as the leader in the great work. He showed our correspondence to many persons, and urged them to associate with me and form what he called a phalanx for bringing forward the necessary measures to put an end to slavery. Seeing no prospect of success, I abandoned the State, restored to my slaves their liberty, and removed them to Illinois, where I have had the high gratification of seeing them free, happy, and prosperous. "I have been too unwell to see and to deliver to our old friend, Mr. Short, your kind message. As soon as I am well enough to walk to his house I will do so. As I am now suffering a good deal from headache I must conclude, after repeating assurances of my great respect and sincere regard. "EDWARD COLES. "_Martin Van Buren, ex-President U. S._" THOMAS VAN RENSSELAER TO MARTIN VAN BUREN "NEW YORK, _Oct. 16, 1848_. "HON. MARTIN VAN BUREN.