Apriu,' isn!'"'' }  Gleanings  from  the  German  Jmirnals,  159 
In  my  formula.  Formula  1866,  U.  S.  P. 
Camphor,  .  .  grs.  82|.  .  .  grs.  80. 
Opium,  .       .       grs.  123|.       .       .       grs.  120. 
The  other  ingredients  are  identical  in  quantity. 
Aromatic  Essence  of  Ginger. 
B       Ginger,  ....  ,lxii. 
Cinnamon,        .  .  •  ^i- 
,  Cardamon  Seed,  .  .  o^s. 
Cloves,  ....  3iij. 
Capsicum,         .  .  .  3ij. 
All  in  moderately  coarse  powder. 
Alcohol,  .  .  .  Oiv. 
Proceed  as  directed  for  T\\  Zingiberis. 
The  above  makes  a  very  agreeable  form  of  tinct.  of  ginger. 
I  would  also  suggest  that  some  suitable  character  or  sign  be  used 
to  denote  either  5  or  Z  different  from  the  one  now  used.  I  find  many 
of  the  errors  in  prescriptions  are  caused  by  the  confounding  or  in- 
distinct writing  of  the  two  characters  5  and  5. 
Ml  Airy,  PhUada.,  Fehy.  24,  1871. 
GLEANINGS  FROM  THE  GERMAN  JOURNALS. 
By  John  M.  Maisch. 
Oil  of  B/ue. — A.  Giesecke  observed  that  the  crystalline  mass 
obtained  by  shaking  oil  of  rue  with  bisulphite  of  carbon  cannot  be 
completely  freed  from,  the  carbohydrogen  by  expression,  and  that  it  is 
decomposed  by  a  moderate  heat.  The  carbohydrogen  was  removed 
by  fractional  distillation,  repeated  thirty  times,  and  the  oxygenated 
portion,  boiled  then  constantly  between  225°  and  226°  C,  had  a  spec, 
grav.  =  0-8268  at  20*5°  C,  a  slight  odor  of  pine  apple  and  a  bluish 
violet  fluorescence  in  reflected  light ;  its  composition  was  C22H22O2 ;  it 
congealed  at  -f-  6°,  and  fused  again  at  15°  C.  Boiled  with  bichro- 
mate of  potassa  and  dilute  sulphuric  acid,  it  yielded  only  pelargonic 
and  acetic  acids.  Nascent  hydrogen,  generated  by  gradually  intro- 
ducing thin  slices  of  sodium  into  a  mixture  of  the  oxygenated  portion 
and  alcohol,  produced,  among  other  compounds,  hendecatylalcohol, 
C22H24O2,  which  is  a  colorless  liquid,  insoluble  in  water,  of  the  con- 
sistence of  glycerin,  and  spec.  grav.  0-8268. — Zeitschr.  f  Cliemie, 
1870,  Septb.  428—431. 
Cholesterin  in  Wool  Fat. — Ernst  Schulze  has  proved  the  correct- 
ness of  Hartmann's  inference  that  this  fat  contains  cholesterin.  He 
