DEAR SIR,--Your favor of November 2d arrived a little before I sat out on a journey on which I was absent between five and six weeks. I have still therefore to return you my thanks for the seeds accompanying it, which shall be duly taken care of, and a communication made to others of such as shall prove valuable. I have been long endeavoring to procure the Cork tree from Europe, but without success. A plant which I brought with me from Paris died after languishing some time, and of several parcels of acorns received from a correspondent at Marseilles, not one has ever vegetated. I shall continue my endeavors, although disheartened by the nonchalance of our southern fellow citizens, with whom alone they can thrive. It is now twenty-five years since I sent them two shipments (about 500 plants) of the Olive tree of Aix, the finest Olives in the world. If any of them still exist, it is merely as a curiosity in their gardens, not a single orchard of them has been planted. I sent them also the celebrated species of Sainfoin,[3] from Malta, which yields good crops without a drop of rain through the season. It was lost. The upland rice which I procured fresh from Africa and sent them, has been preserved and spread in the upper parts of Georgia, and I believe in Kentucky. But we must acknowledge their services in furnishing us an abundance of cotton, a substitute for silk, flax and hemp. The ease with which it is spun will occasion it to supplant the two last, and its cleanliness the first. Household manufacture is taking deep root with us. I have a carding machine, two spinning machines, and looms with the flying shuttle in full operation for clothing my own family; and I verily believe that by the next winter this State will not need a yard of imported coarse or middling clothing. I think we have already a sheep for every inhabitant, which will suffice for clothing, and one-third more, which a single year will add, will furnish blanketing. With respect to marine hospitals, which are one of the subjects of your letter, I presume you know that such establishments have been made by the general government in the several States, that a portion of seaman's wages is drawn for their support, and the government furnishes what is deficient. Mr. Gallatin is attentive to them, and they will grow with our growth. You doubt whether we ought to permit the exportation of grain to our enemies; but Great Britain, with her own agricultural support, and those she can command by her access into every sea, cannot be starved by withholding our supplies. And if she is to be fed at all events, why may we not have the benefit of it as well as others? I would not, indeed, feed her armies landed on our territory, because the difficulty of inland subsistence is what will prevent their ever penetrating far into the country, and will confine them to the sea coast. But this would be my only exception. And as to feeding her armies in the peninsula, she is fighting our battles there,