1Thomas Jefferson to Burgess Allison, 20 October 1813 (Jefferson Papers)
I had seen the advertisement of your spinning machine some time ago, and wished to know it’s principle, as I was certain it would be ingenious. I have just been gratified with it in mr Cooper’s emporium, and am as much pleased with it as I expected. it has some valuable improvements on the Jenny which I am in the use of in my family. will you be so good as to inform me what one of them of 12...
2Thomas Jefferson to Burgess Allison, 29 November [1818] (Jefferson Papers)
I thank you, Sir , for the pamphlet you have been so kind as to send me on Naval architecture. retired from the business of the world, enfeebled in body by age & relaxed in mind I cease to interest pay attention wherever I can be excused from it. the improvement appears probable and beautiful, and I wish well to every thing which may better the condition of man, and to nothing more than what...