INTRODUCTION. 



lix 



in India Tirucalli, furnishes an acrid juice, which 

 is used in its fresh state for raising blisters. Other 



EUPHORBIA AMYGDALOIDES. 



kinds are used in various parts of the world as 

 medicines, but require to be administered with 

 caution. The gum resin, Euphorbium, of che- 

 mists, is procured from three species growing in 

 Africa and the Canaries, by wounding the sterns^ 



