SMALLPOX: WHAT IS IT?
... SMALLPOX: WHAT IS IT ? TO THE EDITORS OF Tll- LtV7RPO,)L MERCURY. Gentlemenr-Allow rue in a few plain words to explain the above question. It is a fermentatioa in the system of vaiious blo-d poi.s-os. The exciting causes of this maladv mav i-hieflv be ...