To Walter Sellon Date: LONDON, January 10, 1784. DEAR SIR,"I sincerely thank you for your speedy and satisfactory answer. T. Maxfield affirms that you either wrote such a deed or signed it. So fare it well. On the 28th of last June I finished my eightieth year. When I was young I had weak eyes, trembling hands, and abundance of infirmities. But, by the blessing of God, I have outlived them all. I have no infirmities now but what I judge to be inseparable from flesh and blood. This hath God wrought. I am afraid you want the grand medicine which I use - exercise and change of air. I believe what you say concerning that place in the Journal is true. I can trust your memory better than my own. You used to meet me when I came near you; but you seem of late to have forgotten Your old friend and brother.