ON THE CEREBROSPINAL NERVES. 273 



to those of the white matter of the brain, it would 

 also appear probable that the nerves, like it, are 

 capable of being affected in their higher functions by 

 changes in the quality of the blood supplied to them, 

 and of being variously acted on by medicinal sub- 

 stances locally applied. And there is every reason 

 to believe such to be the case. 



The further application of these principles to the 

 prevention and treatment of nervous disorders, may 

 be reserved for another opportunity, as it is not com- 

 prised within the leading object of the present work. 

 But even the few remarks made may, perhaps, suffice 

 to show how much we have yet to learn of the phy- 

 siology and pathology of the least complicated 

 nervous structures. They may also serve to illustrate 

 the universality of the influence exercised in the 

 living body by the simple, but wonderful, function, 

 some of whose uses and disorders have, in the pre- 

 ceding pages, been briefly and imperfectly indicated. 



THE END. 



