“Father Of Modern Surgery," the English surgeon who developed antiseptic surgery and helped drive the pursuit of cleanliness in hospitals. ALS signed “Lister,” one page both sides, 4 x 6, black-bordered personal letterhead, November 7, 1901. In part: “It was very kind of you to remember your old teacher with a congratulatory letter, which I received later than you intended as a consequence of my absence from London.” Accompanied by the original mailing envelope, written in Lister’s hand. In fine conditon, with a few faint creases. COA John Reznikoff/PSA/DNA and R&R COA.