ArebJSyP?89r7m'}  Solatium  Carolinense.  85 
balsam.  The  sections  which  were  tested  for  tannin  and  oleoresin 
were  treated  direct  with  ferric  chloride  in  absolute  alcohol  and 
alcannin,  respectively,  then  mounted  in  xylol  balsam.  These  latter 
tests  were  confirmed  by  treating    dry  sections  with  ammonio- 
Fig.  1,  underground  portion  of  the  plant,  one-half  natural  size. 
ferric  alum.  By  treating  dry  sections  of  the  young  root  for 
tannin  with  ferric  chloride  in  absolute  alcohol,  tannin  precipitates 
were  produced  in  the  central  parenchyma  and  the  cortical 
parenchyma.    In  the  old  root  tannin  precipitates  were  produced  in 
