Am.  Jour.  Pharm. 
September,  1920. 
Medical  Division  of  National  Museum. 
663 
pains  which  the  museum  authorities  have  taken  in  the  preparation 
of  the  exhibit. 
The  still  shown  in  the  accompanying  illustration  is  used  for  the 
distillation  of  the  oil  from  the  bark  of  the  Betula  Lenta,  the  black 
or  sweet  birch  which  abounds  in  the  mountains  of  the  Carolinas, 
eastern  Tennessee,  Kentucky,  and  some  sections  of  Connecticut  and 
Pennsylvania.  In  Connecticut  the  oil  is  obtained  from  the  twigs 
of  the  small  birch  bushes,  the  supply  of  trees  having  been  exhausted. 
Distilling  Birch  Oil  in  the  Carolina  Mountains. 
From  a  model  shown  in  the  Medical  Division  of  the  National  Museum  at  Washington, 
The  illustration  shows  a  model  of  a  North  Carolina  still  in  opera- 
tion which  is  exhibited  in  the  Division  of  Medicine  of  the  National 
Museum  at  Washington.  The  exhibit  was  prepared  under  the 
supervision  of  Mr.  C.  Whitebread. 
