left. When the air is dry, it contracts, draws its companion to the right, and becomes itself the interior annulus. In order to show this dilatation and contraction, an index is fixed on the upper end of two of the slips; a plate of metal or wood is fastened to the front of the plinth, so as to cover the two slips from the eye. A slit, being nearly the portion of a circle, is cut in this plate, so that the shank of the index may play freely through its whole range. On the edge of the slit is a graduation. The objection to this instrument is, that it is not fit for comparative observations, because no two pieces of wood being of the same texture exactly, no two will yield exactly alike to the same agent. However, it is less objectionable on this account, than most of the substances used. Mr. Rittenhouse had a thought of trying ivory; but I do not know whether he executed it. All these substances not only vary from one another at the same time, but from themselves at different times. All of them, however, have some peculiar advantages, and I think this, on the whole, appeared preferable to any other I had ever seen. Not knowing whether you had heard of this instrument, and supposing it would amuse you, I have taken the liberty of detailing it to you.
I beg you to be assured of the sentiments of perfect esteem and respect with which I have the honor to be, Sir, your most obedient, and most humble servant.
TO JOHN JAY
Sir,—I had the honor of addressing you on the 12th of the last month; since which, your favor of October the 12th has been received, enclosing a copy of the resolution of Congress for recalling Mr. Lambe. My letter by Mr. Randall informed you that we had put an end to his powers, and required him to repair to Congress. I lately received a letter from him, dated Alicant, October the 10th, of which I have the honor to enclose you a copy; by which, you will perceive that the circumstance of ill health, either true or false, is urged for his not obeying our call. I shall immediately forward the order of Congress. I am not without fear, that some misapplication of the public money may enter into the causes of his declining to return. The moment that I saw a symptom of this in his conduct, as it was a circumstance which did not admit the delay of consulting Mr. Adams, I wrote to Mr. Carmichael, to stop any moneys which he might have in the hands of his banker. I am still unable to judge whether he is guilty of this or not, as by the arrangements with Mr. Adams, who alone had done business with the bankers of the United States, in Holland, Mr. Lambe's drafts were to be made on him, and I know not what their amount has been. His drafts could not have been negotiated, if made on us both, at places so distant. Perhaps it may be thought, that the appointment of Mr. Lambe was censurable in the moment in which it was made. It is a piece of justice, therefore, which I owe to Mr. Adams, to declare that the proposition went first from me to him. I take the liberty of enclosing you a copy of my letter to Mr. Adams, of September the 24th, 1785, in which that proposition was made. It expresses the motives operating on my mind in that moment, as well as the cautions I thought it necessary to take. To these must be added, the difficulty of finding an American in Europe fit for the business, and willing to undertake it. I knew afterwards, that Dr. Bancroft (who is named in the letter) could not, on account of his own affairs, have accepted even a primary appointment. I think it evident, that no appointment could have succeeded without a much greater sum of money.
I am happy to find that Mr. Barclay's mission has been attended with complete success. For this we are indebted, unquestionably, to the influence and good offices of the court of Madrid. Colonel Franks, the bearer of this, will have the honor to put into your hands the original of the treaty, with other papers accompanying it. It will appear by these, that Mr. Barclay has conducted himself with a degree of intelligence and of good faith, which reflects the highest honor on him.
A copy of a letter from Captain O'Bryan to Mr. Carmichael, is also herewith enclosed. The information it contains will throw farther light on the affairs of Algiers. His observations on the difficulties which arise from the distance of Mr. Adams and myself from that place, and from one another, and the delays occasioned by this circumstance, are certainly just. If Congress should propose to revive the negotiations, they will judge whether it will not be more expedient to send a person to Algiers, who can be trusted with full powers; and also whether a mission to Constantinople may not be previously necessary. Before I quit this subject, I must correct an error in the letter of Captain O'Bryan. Mr. Lambe was not limited, as he says, to one hundred, but to two hundred dollars apiece for our prisoners. This was the price which has been just paid for a large number of French prisoners, and this was our guide.
I have the honor to be, with the most perfect esteem and respect, Sir, your most obedient, and most humble servant.
TO SAMUEL OSGOOD
Dear Sir,—I am desired to forward to you the enclosed queries, and to ask the favor of you to give such an answer to them, as may not give you too much trouble. Those which stand foremost on the paper, can be addressed only to your complaisance; but the last may possibly be interesting to your department, and to the United States. I mean those which suggest the possibility of borrowing money in Europe, the principal of which shall be ultimately payable in land, and in the meantime a good interest. You know best whether the suggestion can be turned to any profit, and whether it will be worth while to introduce any proposition to Congress thereon. Among the possible shapes into which a matter of this kind may be formed, the following is one: Let us suppose the public lands to be worth a dollar, hard money, the acre. If we should ask of a moneyed man a loan of one hundred dollars, payable with one hundred acres of land at the end of ten years, and in the meantime carrying an interest of five per cent., this would be more disadvantageous to the lender than a common loan, payable ultimately in cash. But if we should say, we will deliver you the one hundred acres of land immediately, which is in fact an immediate payment of the principal, and will nevertheless pay your interest of five per cent., for ten years, this offers a superior advantage, and might tempt money holders. But what should we in fact receive, in this way, for our lands? Thirty-seven dollars and one-fourth, being left in Europe, on an interest of five per cent., would pay annually the interest of the one hundred dollars for ten years. There would remain then only sixty-two dollars and three-quarters, for the one hundred acres of land, that is to say, about two thirds of its price. Congress can best determine, whether any circumstance in our situation, should induce us to get rid of any of our debts in that way. I beg you to understand, that I have named rates of interest, term of payment, and price of land, merely to state the case, and without the least knowledge that a loan could be obtained on these terms. It remains to inform you from whom this suggestion comes. The person from whom I receive it, is a Monsieur Claviere, connected with the moneyed men of Amsterdam. He is, on behalf of a company there, actually treating with the Comptroller General here, for the purchase of our debt to this country, at a considerable discount. Whether he has an idea of offering a loan to us, on terms such as I have above spoken of, I know not; nor do I know that he is authorized to make the suggestion he has made. If the thing should be deemed worthy the attention of Congress, they can only consider it as a possibility, and take measures to avail themselves of it, if the possibility turns out in their favor, and not to be disappointed if it does not. Claviere's proposition not being formal enough for me to make an official communication of it, you will make what use of it you see best. I am, with very sincere esteem and attachment, dear Sir, your most obedient, and most humble servant.
TO M. DE CALONNES
Sir,—I had the honor, on the 2d of November last, to acknowledge the receipt of your Excellency's letter of October the 22d, wherein you are so good as to communicate to me the arrangements which the King had been pleased to make for the encouragement of the commerce of the United States of America with his subjects. I immediately made known the same to the agents of the United States in the several seaports of this kingdom, that they might give information thereof to the persons concerned in that commerce. Unacquainted with the forms in which his Majesty usually declares his will in cases of this kind, and the manner in which it is communicated to the officers of the customs at the seaports, I am unable to answer those agents who inform me that the officers of the customs and farms do not as yet consider themselves bound to conform to the new regulations. I take the liberty, therefore, of soliciting your Excellency's interposition for the issuing such orders as may be necessary for carrying into effect the gracious intentions