^m-^;^xm'} Pharmaceutical  Uses  of  Extract  of  Malt.  341 
dust  these  yield  the  respective  monosulphides.  Allyl  sulphide  is 
not  present  in  the  oil  of  asafcetida. 
Olefinic  Constituents  of  Ethereal  Oils. — F.  W.  Semmler  (Ber.  d.  D. 
Chem.  Ges.,  1891,  201),  describes  the  following:  (1)  Geranial  (Gera- 
mium  aldehyde)  C10H16O  is  a  light  yellow  fluid,  which  is  obtained 
colorless  by  distillation  in  vacuo,  and  possesses  an  odor  of  lemon 
and  orange.  It  boils  at  224-2280  C.  at  760  mm.  and  no-1120  C. 
at  12  mm.  pressure  ;  its  specific  gravity  is  0-8992,  and  it  has  no  action 
on  polarized  light.  (2)  Oil  of  orange  peel  contains  geranial,  and  a 
lower  boiling  aldehyde.  (3)  Citral,  a  body  isolated  by  Schimmel 
&  Co.,  from  oil  of  lemon,  lemon  grass  and  citronella  is  identical  with 
geranial.  (4)  Geranial  boiled  with  double  the  amount  of  bisulphate 
of  potassium  yields  cymol.  (5)  Oil  of  Coriander  distilled  in  vacuo 
yielded  terpenes  and  coriandrol  C10H18O,  boiling  at  194-1980  C.  at 
760  mm.  with  partial  decomposition,  and  at  85-900  C.  at  20  mm. 
pressure.  It  is  dextrorotary,  and  takes  up  four  bromine  atoms.  (6) 
Linaloe-oil  (Licaria  guianensis,  Aublet,  Lauraceae)  contains  linalool 
C10H18O,  having  the  specific  gravity  0-8702  at  200  C.,  and  is  laevogyre. 
(7)  Oil  of  melissa  (German)  contains  an  aldehyde,  probably  identical 
with  citronellol  of  Dodge  (A.  J.  P.,  1890,  13,  355).  (8)  As  olefinic 
camphors  the  author  regards  bodies  having  the  formulas  C10H20O, 
C10H18O  and  C10H16O,  which  are  not  benzol  derivatives.  These 
bodies  as  far  as  known  are  liquid,  have  a  lower  specific  gravity  and 
a  higher  refractive  power  than  the  aromatic  camphors.  They  are 
either  alcohols,  aldehydes  or  ketones. 
01.  Ricini — According  to  H.  Meyer  {Arch,  f  exper.  Pathol. ,  28, 
145),  the  purging  action  of  castor  oil  is  due  to  ricinolic  acid  and  its 
glyceride.  Besides  these  two  bodies  the  ricinelaidic  acid  was  also 
experimented  with.    All  three  produced  purging  with  cats. 
PHARMACEUTICAL  USES  OF  EXTRACT  OF  MALT. 
By  Jean  Gordon,  Ph.  G. 
From  an  Inaugural  Essay  presented  to  the  Philadelphia  College  of  Pharmacy. 
Although  the  use  of  extract  of  malt  as  an-  emulsifying  agent 
and  as  a  vehicle  for  various  remedies  is  frequently  mentioned  in 
journals  and  pharmaceutical  works,  and  manufacturing  chemists 
have  put  upon  the  market  a  very  large  number  of  mixtures  or 
emulsions  of  malt  extract  with  cod  liver  oil,  some  of  them  so 
prepared  as  to  be  quite  agreeable  to  the  taste  ;  yet  I  am  not  aware 
