168  Notes  on  Proteid  Iron  Solutions.       { Am Apriii  fmrttJ' 
such  a  way  as  to  form  turbid  solutions  with  sodium  citrate  solution 
or  alkali. 
It  will  be  seen  that  the  same  "  base  "  forms  the  body  of  both 
preparations.  This  has  a  decided  advantage  in  that  further  com- 
binations are  possible. 
If  the  formula  for  L.  F.  P.  be  completed  to  the  point  where  the 
peptonized  iron  is  dissolved  in  the  solution  of  sodium  citrate  and 
alcohol  added,  it  will  have  a  volume  less  than  400  c.c.  It  may  be 
diluted  to  this  volume  and  filtered.  It  will  now  keep  indefinitely, 
and  may  be  designated  "  liquor  ferri  peptonati  base." 
To  prepare  liquor  ferri  peptonati,  N.  F.: 
Base  400  c.c. 
Aromatic  elixir  100  " 
Tincture  vanilla   8  " 
Angelica  wine  100  " 
Water,  q.  s.  to  make  1000  " 
Liquor  ferri  peptonati  cum  mangano  : 
Base  400  c.c. 
Manganese  citrate,  normal   4*4  grammes. 
Sodium  citrate  •   5  " 
Aromatic  elixir  100  c.c. 
Tincture  vanilla   8  " 
Angelica  wine  100  " 
Dissolve  the  sodium  citrate  in  10  c.c.  of  water  and  add  to  this 
the  manganese  citrate.  When  all  is  dissolved,  add  the  solution  to 
the  base  and  then  add  the  other  ingredients. 
Liquor  ferri  peptonati  cum  mangano  et  arseno. 
Base                                                                a,  .  400  c.c. 
Manganese  citrate                                                     4*4  grammes. 
Sodium  citrate                                                     .     5  " 
Arsenous  oxide                                                          '325  " 
Potassium  bicarbonate    .  .                                            7  " 
Aromatic  elixir                                                       100  c.c. 
Tincture  vanilla  ,                        8  " 
Angelica  wine  100  u 
Dissolve  and  add  the  manganese  citrate  as  in  liquor  ferri  peptonati 
cum  mangano.  Dissolve  the  potassium  bicarbonate  in  10  c.c.  water 
and  heat  with  the  arsenous  oxide  until  all  is  dissolved.  Add  to  the 
mixture  already  prepared.  Then  add  the  flavoring  ingredients  and 
sufficient  water  to  make  1,000  c.c.     The  finished  solution  contains  : 
