110 



'of secretion. Baron Haller, however, ex- 

 pressly asserts the opinion, that actions, 

 living actions, have a great share in causing 

 the pecuUarities of secretions, and the 

 changes we observe in them. But the 

 direct proof of this fact remained to be 

 exhibited to the pubhc by Mr. Hunter. 

 It was by observing the pecuharity of the 

 local actions, and consequent secretions 

 resulting from the application of different 

 morbific poisons, that this subject was 

 placed in a clear and distinct point of view. 

 In such cases the same structure may be 

 very variously affected, producing different 

 forms of disease, and various kinds of 

 secretions. I do not dwell upon the sub- 

 ject, because the facts and inferences have 

 not as yet been laid before you. 



I bring fonvards Mr. Hunter's opinions 

 on these subjects, at present, merely to 

 shew what notions we are warranted in 



