"On various accounts I received with much pleasure, your obliging letter of the 30th June last, which only reached me, at the place, on the 19th November. I certainly feel highly indebted to Mr. Binns, both for the information contained in the pamphlet he has drawn up; and also, for his having been the means of inducing you to recommence our correspondence together, for the purpose of transmitting a paper which does credit to the practical farmers of America. "As to the Plaster of Paris, which Mr. Binns so strongly recommends, it is singularly, that whilst it proves such a source of fertility to you, it is of little avail in any part of the British Islands, Kent alone excepted. I am thence inclined to conjecture, that its great advantage must arise from its attracting moisture from the atmosphere, of which we have in great abundance in these Kingdoms...." But it is time to turn to Binns' own record of his work. How desperately poor the yield of grain had become in Loudoun is shown by his statement that some of his unplastered land yielded but five bushels of wheat to the acre and not more than three bushels of corn on a place so worn out, when he took it over in 1793, that his friends thought he "must starve on it." By 1798 he was getting from that farm 15-1/2 bushels of corn to the acre and the next year, on that corn land, had 27 bushels of heavy wheat per acre. In another place he notes: "I put a parcel of it" (plaster) "on some corn in the hill which produced about 22 bushels, the other part of the field yielding about 12 bushels to the acre." As an interesting sidelight he indicates that tobacco was being grown around Leesburg at that time. In 1803, as he wrote his book, he expected a crop of 40 bushels of wheat per acre on his farms. And by way of summarizing his work "There are several places on the Catocton Mountain, that some few years past the corn stalks, when the tops were taken off, were not above three feet high, and which would not produce more than two or three barrels of corn to the acre, and from 5 to 6 bushels of wheat; and perhaps not yield grass enough to the acre to feed a horse for two weeks after the harvest was taken off; but from the use of plaster will now produce from six to eight barrels of corn, and from twenty to twenty-five bushels of wheat per acre; the luxuriant growth of the white and red clover after harvest gives the fields which once looked like a barren waste of country, the appearance of a beautiful meadow." And upon sanitation he has this to say: