DR. BENJAMIN WATERHOUSE. — A VERY RARE AUTOGRAPH LETTER SIGNED FROM THE PIONEER OF VACCINATION IN THE UNITED STATES — HE HELPED ERADICATE SMALL POX
WATERHOUSE, BENJAMIN. (1754-1846). American physician; co-founder and professor of Harvard Medical School; known for being the first doctor to test the smallpox vaccine in the United States, which he carried out on his own family. Very rare Autograph Letter Signed, “Benjn. Waterhouse”. One full page, quarto. Cambridge, January 5, 1799. Very fine condition.