Thomas Jefferson, with his restless intelligence, was one of the first to acquire the book. Having studied it and being impressed with Binns' success, he wrote to Sir John Sinclair, the head of the English Board of Agriculture, a letter dated the 30th June, 1803, sending with it
"the enclosed pamphlet on the use of gypsum by a Mr. Binns, a plain farmer, who understands handling his plough better than his pen. he is certainly something of an enthusiast in the use of this manure; but he has a right to be so. the result of his husbandry prooves his confidence in it well found for from being poor, it has made him rich. the county of Loudoun in which he live(s) exhausted & wasted by bad husbandry, has, from his example, become the most productive one in Virginia: and its lands, from being the lowest, sell at the highest prices. these facts speak more strongly for his pamphlet than a better arrangement & more polished phrases would have done. were I now a farmer I should surely adopt the gypsum...."
On the same day, in a letter to Mr. William Strictland, another member of the English Board of Agriculture, Jefferson wrote
"You will discover that Mr. Binns is an enthusiast for the use of gypsum, but there are two facts which prove that he has a right to be so 1. he began poor and has made himself tollerably rich by his farming alone. 2. the county of Loudoun, in which he lives, had been so exhausted & wasted by bad husbandry, that it began to depopulate, the inhabitants going Southwardly in quest of better lands. Binns' success has stopped that immigration. it is now becoming on(e) of the most productive counties of the state of Virginia, and the price given for the lands is multiplied manifold."
Sir John Sinclair in his reply to Mr. Jefferson, whom he addresses as "His Highness, Thomas Jefferson" wrote from Edinburgh under date of the 1st January 1804:
"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.