with which I am sincerely, dear Sir, your friend and servant. P. S. Since writing the preceding, I have had a conversation on the subject of the steam mills, with the famous Boulton, to whom those of London belong, and who is here at this time. He compares the effect of steam with that of horses, in the following manner: Six horses, aided with the most advantageous combination of the mechanical powers hitherto tried, will grind six bushels of flour in an hour; at the end of which time they are all in a foam, and must rest. They can work thus, six hours in the twenty-four, grinding thirty-six bushels of flour, which is six to each horse, for the twenty-four hours. His steam mill in London consumes one hundred and twenty bushels of coal in twenty-four hours, turns ten pair of stones, which grind eight bushels of flour an hour each, which is nineteen hundred and twenty bushels in the twenty-four hours. This makes a peck and a half of coal perform exactly as much as a horse, in one day, can perform. TO COLONEL MONROE. PARIS, December 18, 1786. DEAR SIR,--Your letters of August the 19th and October the 12th, have come duly to hand. My last to you was of the 11th of August. Soon after that date I got my right wrist dislocated, which has, till now, deprived me of the use of that hand; and even now, I can use it but slowly, and with pain. The revisal of the Congressional intelligence contained in your letters, makes me regret the loss of it on your departure. I feel, too, the want of a person there, to whose discretion I can trust confidential communications, and on whose friendship I can rely against the unjust designs of malevolence. I have no reason to suppose I have enemies in Congress; yet it is too possible to be without that fear. Some symptoms make me suspect, that my proceedings to redress the abusive administration of tobacco by the Farmers General have indisposed towards me a powerful person in Philadelphia, who was profiting from that abuse. An expression in the enclosed letter of M. de Calonnes, would seem to imply, that I had asked the abolition of Mr. Morris's contract. I never did. On the contrary, I always observed to them, that it would be unjust to annul that contract. I was led to this, by principles both of justice and interest. Of interest, because that contract would keep up the price of tobacco here, to thirty-four, thirty-six, and thirty-eight livres, from which it will fall when it shall no longer have that support. However, I have done what was right, and I will not so far wound my privilege of doing that, without regard to any man's interest, as to enter into any explanations of this paragraph with him. Yet I esteem him highly, and suppose that hitherto he had esteemed me. You will see by Calonne's letter, that we are doing what we can, to get the trade of the United States put on a good footing. I am now about setting out on a journey to the south of