In the spring of the year that he helped to frame the Federal Constitution he "Sowed the squares No. 2 & 4 at this place [Dogue Run] with oats in the following manner--viz--the East half of No. 2 with half a Bushel of Oats from George Town--and the west half with a Bushel of Poland Oats--The east half of No. 4 with half a bushel of the Poland Oats and the west half with a bushel of the George Town Oats. The objects, and design of this experiment, was to ascertn. 3 things--1st. which of these two kinds of Oats were best the George Town (which was a good kind of the common Oats)--2d. whether two or four bushels to the Acre was best--and 3d. the difference between ground dunged at the Rate of 5 load or 200 bushels to the Acre and ground undunged." This experiment is typical of a great many others and it resulted, of course, in better yields on the manured ground and showed that two bushels of seed were preferable to four. But if he ever set down the result of the experiment as regards the varieties, the passage has escaped me. While at Fredericksburg this year visiting his mother and his sister Betty Lewis he learned of an interesting method of raising potatoes under straw and wrote down the details in his diary. A little later when attending the Federal Convention he kept his eyes and ears open for agricultural information. He learned how the Pennsylvanians cultivated buckwheat and visited the farm of a certain Jones, who was getting good results from the use of plaster of Paris. With his usual interest in labor-saving machinery he inspected at Benjamin Franklin's a sort of ironing machine called a mangle, "well calculated," he thought, "for Table cloths & such articles as have not pleats & irregular foldings & would be very useful in large families." This year he had in wheat seven hundred acres, in grass five hundred eighty acres, in oats four hundred acres, in corn seven hundred acres, with several hundred more in buckwheat, barley, potatoes, peas, beans and turnips. In 1788 he raised one thousand eighty-eight bushels of potatoes on one plantation, but they were not dug till December and in consequence some were badly injured by the frost. An experiment that year was one of transplanting carrots between rows of corn and it was not successful. He worked hard in these years, but, as many another industrious farmer has discovered, he found that he could do little unless nature smiled and fickle nature persisted in frowning. In 1785 the rain seemed to forget how to fall, and in 1786 how to stop falling. Some crops failed or were very short and soon he was so hard up that he was anxious to sell some lands or negroes to meet debts coming due. In February, 1786, in sending fifteen guineas to his mother, he wrote: