nounced on this occasion. Not only explanation, but the actual experiment must be required before we can cease to doubt whether the inventor is not deceived by some false or imperfect view of his subject. Still your patriotic attention to bring such a proposition under our notice, that it might be applied to the public good, if susceptible of it, is praiseworthy, and I return you thanks for it with the assurances of my esteem and respect.

TO CHRISTOPHER COLLES.

WASHINGTON, June 19, 1808.

SIR, I thank you for the pamphlet containing your ideas on the subject of canals constructed of wood; but it is not in my power to give any definite opinion of its national importance. If there exists a cement which used as a lining for cisterns and aqueducts, renders them impermeable to water, (and it is affirmed that in France they are in the possession and use of such an one,) then it becomes the common question whether constructions of wood, brick, or rough stone are cheapest in the end? A question on which every man possesses materials for forming his judgment. I suspect it is the supposed necessity of using hewn stone in works of this kind which has had the greatest effect in discouraging their being undertaken. I tender you my salutations and respects.

TO JAMES PEMBERTON.

WASHINGTON, June 21, 1808.

SIR,-Your favor of May 30th was delivered me on my return to this place, and I now enclose the prospectus of Clarkson's history with my subscription to it. I have perused with great satisfaction the Report of the Committee for the African institution. The sentiments it breathes are worthy of the eminent characters

who compose the institution, as are also the generous cares they propose to undertake. I wish they may begin their work at the right end. Our experience with the Indians has proved that letters are not the first, but the last step in the progression from barbarism to civilization. Our Indian neighbors will occupy all the attentions we may spare, towards the improvement of their condition. The four great Southern tribes are advancing hopefully. The foremost are the Cherokees, the upper settlements of whom have made to me a formal application to be received into the Union as citizens of the United States, and to be governed by our laws. If we can form for them a simple and acceptable plan of advancing by degrees to a maturity for receiving our laws, the example will have a powerful effect towards stimulating the other tribes in the same progression, and will cheer the gloomy views which have overspread their minds as to their own future history. I salute you with friendship and great respect.

TO MR. FRANKLIN.

WASHINGTON, June 22d, 1808. Thomas Jefferson returns his thanks to Mr. Franklin for the address to the Society of Friends which he was so kind as to send him. The appeal both to facts and principles is strong, and their consistency will require an able advocate. Conscious that the present administration has been essentially pacific, and that in all questions of importance it has been governed by the identical principles professed by that Society, it has been quite at a loss to conjecture the unknown cause of the opposition of the greater part, and bare neutrality of the rest. The hope however that prejudices would at length give way to facts, has never been entirely extinguished, and still may be realized in favor of another administration.

TO DOCTOR LEIB.

WASHINGTON, June 23, 1808. SIR, I have duly received your favor covering a copy of the talk to the Tammany society, for which I thank you, and particularly for the favorable sentiments expressed towards myself. Certainly, nothing will so much sweeten the tranquillity and comfort of retirement, as the knowledge that I carry with me the good will and approbation of my republican fellow citizens, and especially of the individuals in unison with whom I have so long acted. With respect to the federalists, I believe we think alike; for when speaking of them, we never mean to include a worthy portion of our fellow citizens, who consider themselves as in duty bound to support the constituted authorities of every branch, and to reserve their opposition to the period of election. These having acquired the appellation of federalists, while a federal administration was in place, have not cared about throwing off their name, but adhering to their principle, are the supporters of the present order of things. The other branch of the federalists, those who are so in principle as well as in name, disapprove of the republican principles and features of our Constitution, and would, I believe, welcome any public calamity (war with England excepted) which might lessen the confidence of our country in those principles and forms. I have generally considered them rather as subjects for a mad-house. But they are now playing a game of the most mischievious tendency, without perhaps being themselves aware of it. They are endeavoring to convince England that we suffer more by the embargo than they do, and if they will but hold out awhile, we must abandon it. It is true, the time will come when we must abandon it. But if this is before the repeal of the orders of council, we must abandon it only for a state of war. The day is not distant, when that will be preferable to a longer continuance of the embargo. But we can never remove that, and let our vessels go out and be taken under these orders, without making reprisal. Yet this is the very state of things which these federal monarchists are endeav

oring to bring about; and in this it is but too possible they may succeed. But the fact is, that if we have war with England, it will be solely produced by their manœuvres. I think that in two

or three months we shall know what will be the issue.

I salute you with esteem and respect.

TO GENERAL WILKINSON.

June 24, 1808.

Thomas Jefferson presents his compliments to General Wilkinson, and in answer to his letters of yesterday observes that during the course of the Burr conspiracy, the voluminous communications he received were generally read but once and then committed to the Attorney General, and were never returned to him. It is not in his power, therefore, to say that General Wilkinson did or did not denounce eminent persons to him, and still less who they were. It was unavoidable that he should from time to time mention persons known or supposed to be accomplices of Burr, and it is recollected that some of these suspicions were corrected afterwards on better information. Whether the undefined term denunciation goes to cases of this kind or not Thomas Jefferson does not know, nor could he now name from recollection the persons suspected at different times. He salutes General Wilkinson respectfully.

TO COLONEL D. C. BRENT.

June 24, 1808.

DEAR SIR,-The information given to me by Mrs. Paradise of letters to me from her grandsons, is without foundation. I have not for many years heard a tittle respecting the family at Venice. Should any information respecting them come to me I will certainly communicate it to Mrs. Paradise.

That the embargo is approved by the body of republicans

through the Union, cannot be doubted. It is equally known that a great proportion of the federalists approve of it; but as they think it an engine which may be used advantageously against the republican system, they countenance the clamors against it. I salute you with great friendship and respect.

TO MR. GALLATIN.

July 4, 1808.

General Turreau's application for two vessels to carry French subjects to France, must, I think, be granted, because under present circumstances we ought not on slight grounds to dissatisfy either belligerent. The vessels may be back before winter, and their only danger will be of stoppage by the English, who, however, have no right but to take out the French subjects.

At the same time, I think it would be well to say to General Turreau that we reluctantly let our seamen be exposed to capture, or perhaps to a voluntary engagement with one of the belligerents that we rely, therefore, on his so proportioning the vessels to the number of passengers as merely to give them a reasonable accommodation. It would be well, too, that he should inform us after their departure, of the number of persons sent in them. Affectionate salutes.

TO HIS EXCELLENCY GOVERNOR CLAIBORNE.

WASHINGTON, July 9, 1808. SIR, I have lately seen a printed report of the committee of the Canal company of New Orleans, stating the progress and prospects of their enterprize. In this the United States feel a strong interest, inasmuch as it will so much facilitate the passage of our armed vessels out of the one water into the other. For this purpose, however, there must be at least five and a half feet water through the whole line of communication from the lake to