1Peter S. Du Ponceau to Thomas Jefferson, 5 December 1817 (Jefferson Papers)
The two letters which you have done me the honor to write to me, dated the 6 th & 7 th ultimo , have been laid by me before the Historical Committee of the Philosophical Society , together with the valuable Manuscripts which accompanied them. They have directed me to return you their warm thanks for these fresh instances of your enlightened & unwearied Zeal in the Cause of Science &...
2Peter S. Du Ponceau to Thomas Jefferson, 11 December 1817 (Jefferson Papers)
In the last letter which I had the honor of writing to you, I omitted to return you thanks in the name of the Historical Committee for the very interesting MSS. which you had the goodness to forward to them on the Subject of opening the Isthmus of Darien . They are fully Sensible of its value & importance, & beg leave to tender you their thanks, with the assurance that your injunction on the...
3Peter S. Du Ponceau to Thomas Jefferson, 5 January 1818 (Jefferson Papers)
I do myself at present the honor merely to acknowledge the receipt of your Letter of the 30 th ult o . The Committee are highly Sensible of the value of your Correspondence & of the important aid you have been pleased to give them Since their institution. They have expressed their S Grateful Sense of it in a report to the Society , which will be presented at their meeting on Friday next,...
4Peter S. Du Ponceau to Thomas Jefferson, 6 January 1818 (Jefferson Papers)
I have now the honor to answer your Letter of the 30 th ult o . The Committee , I have no doubt, will be as much pleased as I am to find that there is a probability of Supplying the deficiencies of their Copy of the Westover MS. You will render them great service if you can procure for them the loan of that which you have lately received. It will be carefully used & punctually returned. I beg...
5Peter S. Du Ponceau to Thomas Jefferson, 22 January 1818 (Jefferson Papers)
The Historical Committee met last night, when your Letter of the 30 th ult o & my answers of the 5 th & 6 th inst. were laid before them. They have ordered me to reiterate to you the thanks which I had already anticipated for the many favors which they have received at your hands, & particularly for the Communications accompanying your last . Your Memoir on the boundaries of Louisiana was...
6Peter S. Du Ponceau to Thomas Jefferson, 24 January 1818 (Jefferson Papers)
I have received the Letter you have done me the honor to write to me on the 17 th inst. There is no part in which the two MSS of the line in our possession are both alike defective; what is wanting in the one is supplied by the other as far as they respectively go; but I ought to observe that the MS. which you have had the goodness to deposit with us is not So Satisfactory or So full as the...
7Peter S. Du Ponceau to Thomas Jefferson, 14 February 1818 (Jefferson Papers)
I have the satisfaction to inform You that the Volume of the Society ’s Transactions now in the Press will be out in the Course of next Week. In the mean while I have the honor of enclosing to you the Printed sheets which contain a Report of the Historical Committee , in which you will find a feeble expression of their gratitude for the patronage with which you have honored them & the favors...
8Peter S. Du Ponceau to Thomas Jefferson, 24 February 1818 (Jefferson Papers)
I have received the Letter you have done me the honor to write to me on the 19 th inst, including the parts of the History of the line, which were deficient in our MS. I regret that I innocently put you to the trouble of having 16 pages Copied more than was necessary. For the passage which You could not find, & for which you looked according to my letter to the date of the 9 th of March is in...
9Peter S. Du Ponceau to Thomas Jefferson, 14 April 1818 (Jefferson Papers)
I have the Satisfaction to inform you that the Historical Committee has received from M r Biddle , the MSS. of Lewis & Clarke . I enclose a Copy of the Letter with which he accompanied them, with some Memoranda by M r Vaughan at foot. This enclosure dispenses me from the necessity of stating further particulars. The Society & its Committees go on with Zeal & Spirit.