AND ANIMAL LIFE. 359 



deteriorated blood, conjoined with a surcharge of 

 the organs appropriated to secretion. I cannot 

 possibly explain how this quantity or quality 

 of blood acts, nor shall I attempt a solution of 

 the difficulty : At present it is sufficient to 

 show that diarrhoea very often occurs when the 

 sanguineous fluid is determined to the abdomin- 

 al viscera by the depressing influence of fear ; 

 or, at the commencement of dysentery, the ori- 

 gin of which I have endeavoured to trace in the 

 chapter on the action of Emetics : and as the 

 present investigation includes the same consi- 

 derations, the reader is referred to that part of 

 the work for a fuller statement of the views. 



By these observations it is by no means intend- 

 ed to show that diarrhoea at all times depends 

 on one state of the system, as, for example, the 

 one described ; the different conditions of the 

 body that predispose to this effect are numer- 

 ous, and of very opposite kinds, the elucidation 

 of which does not belong to the subject of pas- 

 sion. 



CCCCXXXI. There is another prominent 

 consequence connected with fear, the study of 

 which is equally important as the preceding, and 

 the views brought forward to explain its ori- 

 gin will probably throw considerable light on 

 other phenomena of the system which appear to 

 have no relation to the present subject I al- 

 lude to the flow of limpid urine.* 



