INTRODUCTION. XV11 



garrio bodies) are always the same, the circumstances of the 

 habit of the patient under which they are administered being 

 equal. 



ANIMAL, SUBSTANCES. 



The animal substances as medicinal agents are few. As 

 objects of Natural History, their general classification has 

 been already stated. The respective Divisions of the two 

 grand kingdoms will now be more particularly described. 



VEGETABLE SUBSTANCES. 



For these see the Family Flora, or Materia Medica Bo- 

 tanica, Vols. I., II., III., published on a similar plan with this 

 work, by the same author.* 



V. Division. Ac KIT A. 



In animals belonging to this division no nervous filaments 

 or masses have been discovered, and the neurine or nervous 

 matter is supposed to be diffused in a molecular condition 

 through the body, mixed up with the gelatinous parenchyma 

 of which they consist. Possessing no brain or central mass 



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