1 6 The Caufes and Cure iince, from his own Knowledge alio, givai a very particular and national Account of this Place.,, and the Manner of its killing . to whom therefore the Reader may turn for further Satisfaction. ANOTHER, and more general Caufe than any hitherto mentioned of thefe Ma- ladies, is fbme bad and unw-holfbme Con- ftitution of Air. Such CJSftitutions may Strife from feveral Caufes, which although they affect us in different Manners, yet as they are equally fata], we call them all Malignant or Peftilcntial : In Order there- fore to imderftand the better how we are differently affected by thofe different Con- flitutions, it will be proper to confider them ibmewhat diftinctly, under thefe genera! Heads, viz.* A dry hot Air, hat and moift, cold and moifi, and cold and dry ; to which moll Variations of Air may be reduced. THAT from the ieveral Constitutions of Air, our Eodies are differently affected; mid that mofl* Difeafes are in fome Meafure more or lefs influenced thereby, is quite out of Difpute. Hippocrates, in a great many Places, declares himfelf of this Mind: His whole third Section of Aphorisms is a Proof of