xxw The PREFACE. 



an abftraB of it to this edition, in a di-- 

 ftindi Appendix. 



P. S. By long experience of the ufe of 

 Nitre,, it is now recommended to be given 

 in much larger quantities than was at 

 firfl advifed) viz. to three or four ounces 

 for a dofcy and this quantity well diluted 

 with water- gruel may, in fevers , and 

 . many cafes, be given thrice a day. 



