460 
Glmnuigii  in  Materia  Medica. 
f  Am.  Jour.  I'harm. 
t      Sept.,  1882 
sarv  to  distil  the  oil,  collecting  the  fraction  up  to  220°C.,  and  treating 
the  residue  with  hot  soda  lye. 
Or  2  volumes  of  the  colorless  oil  are  dissolved  in  6  volumes  of 
•ether;  add  to  this  solution  1  volume  of  concentrated  sulphuric  acid, 
drop  by  drop,  so  as  to  avoid  heating,  agitate  the  mixture  and  set  aside. 
It  should  rapidly  separate  into  two  equal  layers,  of  which  the  upper 
one  is  but  little  colored,  while  the  lower  one  is  deep  red.  Should  the 
oil  contain  little  thymol,  the  mixture  separates  slowly,  and  the  lower 
layer  is  mostly  more  than  one-half,  and  instead  of  being  red  is  merely 
pale  yellow  or  reddish-yellow. — Phar.  Ccntralh.,  1882,  'No.  27. 
Momrrdd  Jisfulosa,  Lhi. ;  Wild  Bergamot. — The  leaves  have  a  pro- 
minent midrib  and  secondary  nerves,  the  latter  anastomosing  near  the 
a 
Monarda  flstulosa,  Lin.  a,  upper  side  of  leaf,  natural  si/e.  6,  calyx, 
slightly  maijnificd.  e,  epidermis  from  lower  surface  of  leaf,  magnified 
160  X. 
margin,  are  apparently  smooth,  but  undei-  the  magnifying  glass  are 
seen  to  be  hairy  and  densely  puuctate  upon  both  surfk^es.  Under  the 
microscope  numerous  small  conical  one-celled  hairs,  about  '05  mm. 
long,  are  observed,  occasionally  with  a  somcAvhat  longer  several-celled 
hair;  the  hairs  on  the  margin  are  1  mm.  long  and  many-celled;  the 
glands  are  situated  in  depressions  upon  a  l)road  stipe.  The  calyx  is 
nearly  1  cm.  long,  tubular,  many-ribbed,  hve-toothed,  densely  hairy 
on  the  margin,  internally  smooth,  externally  somewliat  hairy  and  beset 
with  yellow  glands,  which  are  visible  under  the  magnifier.  The  mint- 
like odor  becomes  prominent  on  rubbing;  the  taste  is  pungently  aro- 
.matic— Dr.  J.  Moeller  in  Ph.  Centralhalle,  No.  29. 
