FOURTH LECTURE. .153 



(268) See ^§ LX, LXI, CIV. 



(269) See ^ CVIII. 



(270) Which is obtained from the use of the 

 cinchona offic, cascarilla, the preparations of iron 

 anil other similar articles, and by nourishing diet; 

 in fine, by a treatment truly tonic in its full extent. 



[A few words to the general reader shall close 

 the book. 



If any one, not having a medical education, 

 should ttiink of prescribing anthelmintic medicines, 

 he is desired to reflect, that this cannot be done ei- 

 ther with safety or any prospect of advantage, 

 till he shall acquire the following information, — a 

 knowledge 1, of the structure of the human body ; 

 3. of the vital properties and functions of the vari- 

 ous organs of this complex system, in a sound state ; 

 3. of the deviations from this state, which occur in 

 the many diseases to which the body is subject : 

 and 4. of the medicinal virtues of the several arti- 

 cles called anthelmintic, both as they affect the in- 

 testinal worms, and the living body they inhabit. 



The injunction, rightly to exercise the facul- 

 ties we possess, is so obviously reasonable, and of 

 so high authority, that it could not receive any new 

 force or extent of application from any thing which 

 could be here said, even if it were proper to dwell 

 on the subject in this place. It is sufficient to re- 

 mark, that this improvement implies a knowledge 

 of our talents, a cultivation, and a proper direction 



of them. 



45 



