142 
ARTICLES OF FOOD. 
therefore more pure and agreeable, It is called by 
some, acid beer.* 
Kolla, the gour-nut, called " African," or 
" Soudan." 
Shea, the butter-tree. 
Manioc, root. The main article of food in 
Congo, used as flour. 
I trust, under the auspices of a good Providence, 
to arrive strong in Soudan. There our greatest 
enemy is fever ! I walked a little to-day, and found 
myself better for the exercise ; but, as a rule, I avoid 
exposing myself to fatigue. 
* In Egypt it is made of rice. — Ed. 
