244 SIX -MONTHS IN MEXICO. 



every cause calculated to lower them. Purg- 

 ing and all evacuations beyond a comfortably 

 open state of the bowels, are not requisite 

 when you are in health. 



Fourthly, — The state of your mind ought 

 to be cheerful, contented, and occupied with 

 objects calculated to excite, but not to ex- 

 haust, its powers. Avoid all the depressing 

 passions, and be not too anxious about any 

 object. You have nothing to fear from an 

 attack of illness in Mexico more than in this 

 country, therefore never dread its approach, 

 although it will be very proper to avoid it. 

 The only complaints by which you may be 

 invaded are fever, dysentery, and diarrhaea, 

 and, perhaps, cholera morbus. To the ma- 

 nagement of these I will now direct your 

 attention. 



Avoid every place where the yellow fever 

 prevails ; for although you may not be af- 



