GUM ARABIC. 



435 



Gum Arabic Acacia Arabica, 



of a globular form, and stand four or five together 

 upon slender stalks, which arise from the insertion of 

 the leaves. It blooms in July. 



The fruit is a long pod resembling that of the lupin 

 and contains many flattish brown seeds. 



This tree is indigenous to Arabia, and found 

 abundantly spread over the vast extent of Africa, but 

 the gum requires for its production the intense heat 

 of the torrid zone. It is said that in Lower Egypt 

 the solar rays are never sufficiently powerful to pro 1 - 

 duce this effect. 



The gum exudes, in a liquid state, from the bark of 

 the trunk and the branches of the tree, and concretes 



