'ebrXy^9oim'}    Recent  Literature  Relating  to  Pharmacy.  95 
Grains. 
Fennel,  bruised  40 
Prepared  chalk  4° 
Gentian,  bruised  ?o 
Zedoary  root,  bruised  20 
Cubebs,  bruised  •  •  •  20 
Myrrh,  elect  and  bruised  20 
White  agaric,  powdered  20 
Opium,  in  powder   2^ 
Black  pepper,  bruised   4 
Cinnamon,  bruised   8 
Ginger,  bruised   8 
Proof  spirit  (  specific  gravity  0*920)  1  pint  (20  ounces)  or  q.  s. 
Macerate  for  seven  days,  press  and  strain. 
Dissolve  in  the  product  : 
Grains. 
Quinine  sulphate  175 
Camphor  20 
After  three  days  filter  and  add  sufficient  proof  spirit  to  make  one  pint. 
Dose  :  1  to  4  drachms.  W.  M. 
RECENT  LITERATURE  RELATING  TO  PHARMACY. 
SELENIFEROUS  SULPHURIC  ACID. 
Most  of  the  acid  furnished  the  University  of  Nancy  was  found  to 
contain  selenium,  which  is  easily  detected  by  warming  on  water- 
bath  five  or  six  drops  of  the  suspected  acid  with  a  trace  of  codeine, 
when  green-blue  color  is  produced  if  selenium  is  present. — 
Schlagdenhauffen  and  Page,  J,  Ph.  et  Ch.,  1900,  261. 
H.  V.  Arny. 
VOLUMETRIC  ALKALOID  ESTIMATIONS. 
O'Linde  has  published  in  Archiv  der  Pharmazie,  1900,  102  to 
135,  an  elaborate  paper  on  the  subject  which  is  worthy  of  transla- 
tion in  full,  as  its  bibliography  is  strikingly  complete.  The  original 
work  is  chiefly  devoted  to  the  indicators  in  the  alkalimetric  estima- 
tion and  he  places  order  of  delicacy  in  aqueous  solvent  as  follows  : 
Luteol,  pernambuco-wood  tincture,  haematoxylin,  logwood  tincture, 
tincture  of  cochineal,  brasilin,  azolitmin,  tincture  of  litmus,  phen- 
acetolin,  phenolphtalein,  rosolic  acid,  lacmoid,  etc.  He  finds  the 
delicacy  is  sometimes  influenced  by  change  in  solvent  and  by  other 
factors,  the  conclusions  being  : 
(1)  That  no  more  indicator  should  be  employed  than  is  abso- 
lutely necessary. 
(2)  The  quantity  of  liquid  in  which  the  alkaloid  is  dissolved 
should  be  as  small  as  possible. 
