The time of the late Congress having expired on the 3d instant, they then separated of necessity. Much important matter was necessarily laid over; this navigation act among others. The land law was put off, and nothing farther done with the mint than to direct workmen to be engaged. The new Congress will meet on the 4th Monday in October. Their laws shall be sent you by the first opportunity after they shall be printed. You will receive herewith those of their second session. We know that Massachusetts has agreed to the amendments to the Constitution, except (as is said) the first, second, and twelfth articles. The others, therefore, are now in force. The articles excepted will depend on the other legislatures. The late expedition against the northern Indians having been ineffectual, more serious operations against them will be undertaken as soon as the season admits. The President is just now setting out on a tour to the southern States, from whence he will not return till June. The British packet being the quickest mode of conveyance, I shall avail myself of that, as well as of the French packet, to write to you. Are the letters which now pass through the French post offices opened, as they were under the former government? This is important for me to know. I am, with great and sincere esteem, dear Sir, your most obedient, and most humble servant. P. S. I omitted to draw your attention to an additional duty of one cent per gallon on rum, by name. This was intended as some discrimination between England and France. It would have been higher, but for the fear of affecting the revenues in a contrary direction. TO WILLIAM SHORT. Philadelphia, March 19, 1791.