Scarce signature by smallpox vaccine inventor Edward Jenner, considered by science historians to have ''saved more lives than the work of any other man.'' He signs the title page of ''Memoirs of Lady Hamilton,'' which was apparently gifted to him by his friend and colleague, Dr. William Fermor. At the top right Jenner signs ''Edwd. Jenner / from'' under which is signed ''W Fermor''. Publication information for the book reads, ''Printed for Henry Colburn, Public Library, Conduit-street, Hanover-square, 1815''. Lady Emma Hamilton, a contemporary of Jenner and Fermor, was a risque companion to many leading men of the period and muse to artist George Romney; the frontispiece of the book features her portrait by Romney. Book runs 399pp. and measures 5.25'' x 8.25''. Bound in paper boards, which are detached and have significant wear to edges. Entire loss of backstrip to the spine. Toning to leaves and detachment of Chapter 1. All pages are present, and signature page, most importantly, remains in very good condition with only some discoloration. Signatures are bold.