10 
Drug  Culture. 
f  Am.  Jour.  Pharm 
1    January,  1901. 
Verbena,  lemongrass.  • 
Vetivert,  fixed  oils. 
Wine,  light  oil,  fusel  oil  and  the  distillate  obtained  from  the  resi- 
due left  in  the  manufacture  of  ether. 
Wormwood,  turpentine.  Residue  from  the  distillation  of  oil  of  tansy. 
A  mixture  was  once  sold  as  oil  of  wormwood  which  cost  about 
65  cents  per  pound  to  make.  It  consisted  of  oils  of  cedar,  spruce, 
amber,  tansy  refuse,  alcohol  and  turpentine.  One  of  the  authors 
had  a  sample  of  this  unique  compound  shown  him.  Even  a  hasty 
examination  should  have  disclosed  most  of  the  ingredients. 
Wintergreen,  true. — There  is  practically  little  of  this  oil  to  be  had. 
Birch,  pure  methyl  salicylate  and  mixtures  of  the  two  are  often  sold 
for  it.  When  it  was  a  common  commercial  article,  Japanese  oil  of 
camphor,  other  light  oils,vcoal  oil,  sassafras  and  chloroform  were 
the  chief  adulterants.  There  appears  to  be  no  satisfactory  test  to 
identify  an  admixture  of  methyl  salicylate  and  birch  except  optical 
rotation,  and  this  observation  must  be  made  with  extreme  care. 
Ylang  Ylang  (Flower  of  Flowers),  kananga,  fatty  oils,  syn- 
thetic oil. 
In  conclusion,  the  writers  would  state  that  they  make  little  claim 
for  originality.  This  paper  contains  the  results  of  some  years  of 
observation  and  information  supplied  by  friends.  Existing  litera- 
ture was  largely  drawn  upon,  chief  among  which  were  "Die 
Aetherische  Oele,"  von  E.  Gildermeister  und  Fr.  Hoffmann ;  the 
English  translation  of  this  by  Edward  Kremers ;  "  The  Chemistry 
of  Essential  Oils  and  Artificial  Perfumes,"  by  Ernest  J.  Parry; 
"  Odorographia,  "  by  J.  Ch.  Sawer,  and  the  "  Semi- Annual  Reports 
of  Schimmel  &  Co.  " 
DRUG  CULTURE. 
By  F.  B.  Kilmer. 
^1  have  heretofore  urged  attention  to  the  study  of  medicinal  plants 
at  their  source  of  supply,  both  in  their  natural  habitat  and  under 
cultivation. 
In  one  instance  I  pleaded  for  the  publication  of  specific  informa- 
tion as  to  the  propagation,  growth,  collection  and  preparation  of 
medicinal  plants,  having  in  view  the  highest  conservation  of  their 
medicinal  constituents,  and  of  securing  more  uniform  production, 
