GLEANINGS  FROM  FRENCH  JOURNALS. 
333 
the  term  redactum  in  this  connection ;  and  it  heing  also  adopted 
in  the  British  Pharmacopoeia,  is  on  the  whole  the  best  name. 
Ferri  et  Ammonice  Tartras,  although  new  to  the  Pharma- 
copoeia, has  long  been  known  in  American  pharmacy.  The 
formula  is  precisely  that  of  the  original  receipe  by  the  writer  of 
this  notice,  published  in  vol.  xii.  p.  276,  of  this  Journal. 
Ferri  et  Ammonia  Sulphas,  or  ammonia-iron  alum,  is  made 
with  the  greatest  readiness  by  the  officinal  recipe,  if  the  solution 
of  tersulphate  be  of  the  strength  of  the  Pharmacopoeia. 
The  formula  for  Sulphate,  Subcarbonate,  Phosphate,  Ferro- 
cyanide  and  Hydrated  Oxide,  and  Tartrate  of  Potassa  and  Iron, 
are  not  materially  changed,  the  three  latter,  being  simplified  by 
making  the  solution  of  tersulphate  a  distinct  preparation,  which 
is  one  of  the  greatest  improvements  of  the  revision. 
GLEANINGS  FROM  THE  FRENCH  JOURNALS. 
By  the  Editor. 
Ferruginous  Syrup  of  Cinchona. — MM.  Mayet  and  Lefort  have 
reported  to  the  Society  of  Pharmacy  at  Paris  the  results  of  an 
examination  of  the  subject  as  to  the  best  manner  of  combining 
iron  and  cinchona  in  a  syrup ;  and  the  paper  will  be  found  at 
page  37  in  the  July  number  (1865)  of  the  Journal  de  Pharm. 
They  started  with  the  question,  which  is  the  better  salt  of  iron 
for  avoiding  the  inky  coloration  of  the  syrup, — the  tartrate,  the 
citrate,  or  the  pyrophosphate  of  sesqui-oxide  of  iron  ?  They  also 
kept  in  view  the  effect  of  binoxalate  of  potassa  in  destroying  the 
color  of  tannate  of  iron,  and  queried  whether  citric  acid  acted  in 
the  same  way,  in  preventing  the  coloration  of  the  syrup.  After 
a  thorough  investigation  they  arrived  at  the  following  conclusions : 
1st.  That  the  addition  of  citric  acid  in  a  mixture  of  syrup  of 
cinchona  and  ammoniated  citrate  of  iron,  does  not  oppose  the  re- 
action of  the  tannin  on  the  iron. 
2d.  That  the  citric  acid  retains  the  ferrotannic  principle  of 
the  syrup  completely  in  solution. 
3d.  That  in  the  ferruginous  syrup  of  cinchona,  prepared  with 
the  acid  citrate  of  sesqui-oxide  of  iron,  there  is  an  important 
