$  Adulterations  of  Essential  Oils.      {A  janSa^fmf.111, 
Geranium,  Turkish,  fixed  oils,  turpentine,  coal  oil. 
Gingergrass  oil,  mineral  oil  and  turpentine. 
Hemlock,  spruce,  turpentine. 
Juniper  wood,  turpentine. 
Lavender,  garden,  spike,  oil  of  camphor,  turpentine. 
Lavender  flowers,  turpentine,  alcohol.  A  poor  oil  is  sometimes 
found  "  plugged  "  with  ester.  According  to  Schimmel,  the  test  for 
solubility,  one  part  to  three  of  70  per  cent,  alcohol,  does  not  prove 
or  disprove  the  presence  of  turpentine.  The  method  of  distillation 
is  responsible  in  the  majority  of  cases  for  the  variations  in  specific 
gravity,  optical  rotation  and  solubility. 
Lemon,  poor  lemon  oil,  with  citral  from  lemongrass  added,  poor 
or  old  orange  oil,  turpentine.  When  testing  on  paper,  use  a  piece 
of  fresh  lemon  peel  for  comparison. 
Lemongrass,  fixed  oils. 
Limes,  expressed,  lemon. 
Melissa,  lemon,  citronella  or  lemongrass  distilled  over  melissa 
leaves.    Mixtures  of  lemon  and  citronella  or  lemongrass. 
Matico,  alcohol,  turpentine. 
Mace,  distilled,  poor  quality  nutmeg  oil. 
Neroli,  petit-grain,  with  a  little  bergamot,  improves  the  quality 
of  a  poor  oil.  Lemon  or  orange  increase  optical  rotation.  Petit- 
grain  or  linaloe  decrease  optical  rotation. 
Orange,  alcohol,  turpentine.  When  testing  on  paper,  use  orange 
peel  for  comparison. 
Origa7ium,  a  mixture  of  thyme,  oil  of  camphor,  turpentine  and 
coloring  matter ;  crude  oil  of  sassafras,  rectified  resin  oil,  Barbadoes 
tar,  crude  petroleum. 
Palmarosa,  coca  nut  oil,  petroleum. 
Patchouli,  cedarwood,  cubebs,  turpentine,  coal  oil. 
Peppermint,  mixture  (peppermint,  glycerin,  alcohol  and  turpen- 
tine) copaiba,  erigeron,  turpentine,  castor  oil,  pennyroyal,  alcohol, 
glycerin,  oil  of  camphor,  sassafras,  looted  oil. 
Pennyroyal,  de-mentholized  mint,  turpentine,  alcohol,  residue  from 
peppermint  distillation. 
Petit-grain,  turpentine. 
Pimento,  cloves,  carbolic  acid. 
Pine-needle  oil,  turpentine.  Much  confusion  exists  in  these  oils, 
due  partly  to  the  nomenclature  of  the  coniferse. 
