R O W E L L I N G. 287 



iingle profeffional proof manfully and fcienti- 

 lically demonftrated, that they are abfolutely 

 neceflary or infalUble in one ; it can create 

 no admiration that I feel myfelf juftiiied in 

 offering to the world an opinion, very little 

 fubfervient to the fuperficial decifions of thofe 

 who have preceded me upon this fubjed:. 



Under the combined weight of thefe con,- 

 fiderations, and fo far as they entitle me to 

 offer judgment, I dare venture to pronounce 

 and promulgate fuch belief, that there are 

 only a very few cafes in which they are either 

 mdividudlly necejjliry or ufejul-, having it at 

 all in their effe^s, the pov/er to produce 

 any fuch change in, or improvement upon, 

 the conftitution; but what may be more con- 

 liftently (and to a greater certainty) produced 

 by judicious interpofition of cvacuants^ diure" 

 tics, alter alive s, or fuch other cla fs of me- 

 dicines, as upon accurate inveftigation of the 

 caufe and reference to fymptoms, may be 

 found correfponding with the cafe and its 

 explanatory parts, in our former volume, 

 more particuiarly adapted to medical difqui- 

 iition and the cure of difeale. 



The 



