494 
American  Pharmaceutical  Association. 
( Am.  Jour.  Pharm 
\  September,  ls^7. 
Sturgeon  oil  is  used  in  i-ounce  doses  as  a  cathartic.    Wild  raspberry  and 
willow  bark  are  used  for  cholera  infantum.    Rumex  is  used  as  a  laxative  and 
for  poultices.    The  Crees  look  upon  wild  carrot  as  their  most  fatal  poison. 
A  paper  entitled  the 
PREPARATION  OF  FLUID  EXTRACT  OF  WILD  CHERRY  FOR 
SYRUP. 
By  J.  M.  Good, 
was  read  by  title. 
THE  IMPORTANT  CONSTITUENTS  OF  TARAXACUM  ROOT. 
By  I,.  E.  Sayre, 
was  then  read  by  the  author.  This  work  of  Prof.  Sayre  on  taraxacum  has  been 
that  of  several  years  past ;  but  during  the  last  two  years  he  has  connected  this 
investigation  with  the  work  of  the  Special  Research  Committee  of  the  Associa- 
tion. The  author  has  come  nearer  crystallizing  the  bitter  principle  taraxacin  than 
ever  before.  He  does  this  from  a  solution  in  acetone,  but  the  crystals  are 
unstable;  the  presence  of  the  least  particle  of  moisture  breaks  them  down  into 
oleoresinous  globules.  He  crystallized  the  fatty  substance  known  as  taraxa- 
cerin  in  the  pure  state  and  submitted  it  to  ultimate  analysis,  which  indicated 
the  substance  to  have  the  empirical  formula  (C9H15Ox ). 
THE  PREPARATION  OF  SOLUBLE  FERRIC  PHOSPHATE. 
By  W.  A.  Puckner. 
The  following  formula,  aiming  at  the  production  of  a  preparation  of  less 
variable  composition,  as  well  as  a  simplification  of  the  process,  was  submitted 
for  trial  and  criticism  : 
SOLUBLE  FERRIC  PHOSPHATE. 
Ferrous  sulphate,  in  clear  crystals  156  gm. 
Sulphuric  acid     20  c.c. 
Potassium  chlorate   12  gm. 
Ammonia  water  340  c.c. 
Citric  acid  120  gm. 
Sodium  phosphate,  unemoresced  200  gm. 
Water  A  sufficient  quantity. 
Add  the  sulphuric  acid  to  240  c.c.  of  water,  contained  in  a  glass  or  porcelain 
vessel,  to  this  add  the  ferrous  sulphate,  warm  gently  until  all  is  dissolved,  then 
add  the  potassium  chlorate  and  continue  the  heat  for  one-half  hour,  or  until  a 
drop  of  the  solution  added  to  potassium  ferricyanide  test  solution  no  longer 
produces  a  distinct  green  or  bluish-green  color.  Add  this  solution,  slowly  and 
with  constant  agitation,  to  the  ammonia  water  contained  in  a  suitable  vessel ; 
to  this  mixture  add  hot  water  4,000  c.c,  and  allow  to  subside  and,  after  one-half 
hour,  decant  or  siphon  off  the  clear  supernatant  liquid.  To  the  residue  add 
2,000  c.c.  hot  water,  allow  to  subside  and  decant ;  repeat  this  washing  with  six 
portions  of  hot  water,  allowing  the  last  portion  to  subside  for  at  least  six  hours 
or  over  night.  Decant  or  siphon  off  the  clear  liquid  as  closely  as  possible,  then 
add  to  the  remaining  magma  the  citric  acid  and  the  sodium  phosphate,  warm 
gently  until  solution  results,  and  then  evaporate  on  a  water-bath  at  a  tempera- 
ture not  exceeding  6o°  C,  until  the  solution  weighs  500  grammes,  and  spread  it 
on  plates  of  glass,  so  that,  when  dry,  the  salt  may  be  obtained  in  scales. 
