Includes bibliographical references (p. 116-117) and index.; Visitors from afar -- A journey to the long-ago time -- The speckled monster helps conquer the New World -- Fighting back With inoculation -- The Jenners of Berkeley -- The young surgeon -- Return of an unwelcome visitor -- Cowpox and its mysterious ways -- The great experiment -- Friends and enemies -- Dr. Jenner's gift to the world -- Jenner's last days -- The final victory -- The frozen monster.;