Uncomfortable most of the day by reason of some error in diet which warns me that I am yet bound to take heed to infirm digestion. I wrote my private letters to my sons and others, accompanied all my work by three o’clock. For some reason or other I felt a little depressed in mind, so that I devoted myself to a long walk, passing in my way over Primrose hill. The air was mild and the day lovely. Nobody to see me for a wonder. Quiet evening.