Th: Jefferson returns his thanks to mr Johnson for his book on Pisé building which he was so kind as to send him, and which he doubts not will be useful to the public as well in that article as the others which it embraces—these as well as the other subjects will be sufficiently worthy of mr Johnson’s attention, & furnish sufficient useful matter for any future additions he may chuse to make. without foreseeing that it will be in the power of Th:J. to contribute any useful information to mr Johnson’s stock, he will always be ready to do it when the leisure of retirement shall give him the means. he salutes mr Johnson with respect.