Difficulties of training and educating Smith's "young friend", Mr Johnes, in agriculture. Disinclined to send him to Edinburgh or Glasgow as knowledge in philosophy "is of no use in life [and] serves to make a man conceited and dogmatical". Criticises those teachers who speculate on agriculture from a distance and relates his own treatise on the proper education for a farmer. Requests Smith's help in locating a former correspondent from whom he once received a sample of "Peruvian wool". Concern for the health of Miss Johnes. Has just received from Dr [James] Anderson in India a sample of wool of a "bright golden yellow"; had it been found near Colchis it "might have been supposed to be the golden fleece".