72 ACCOUNT of a DISTEMPER, Sec. 



I beg leave to conclude this paper with the following words 

 of Celsus : 



" Sjspe vero etiam nova incidere genera morborum in qui- 

 u bus nihil adhuc ufus oftenderit. Ut ideo neceflarium fit ani- 

 " madvertere, unde ea ceperint ; ceu fine quo nemo mortalium 

 ** reperire poflit, cur hoc, quam illo potius utatur." 



X. 



