Am  Aprii;  Srm1       Notes  on  Proteid  Iron  Solutions.  169 
Fe -6  percent.,  Mn -i  per  cent.,  and  As2Og  -0013  gramme  (1-50 
gr.)  per  4  c.c. 
Liquor  ferri  peptonati  cum  mangano,  arseno  et  strychnina. 
Base  400  c.c. 
Solution  of  4-4  grammes  manganese  citrate  as  above,  solution  of 
0  325  As2Og  as  above,  then  add  a  solution  of  -162  gramme  strych- 
nine sulphate  in  5  c.c.  of  water.  Next  add  the  flavoring  ingredients 
and  water  sufficient  to  make  1,000  c.c. 
This  solution  contains:  Fe  -6  per  cent.  Mn  -i  per  cent.,  and  each 
4  c.c. -0013  gramme  (I-50  gr.)  As203,  and  -00065  gramme  (i-lOO 
gr.),  strychnine  sulphate. 
All  these  formulas  have  been  prepared  and  thoroughly  tried  and 
found  to  meet  the  demands  for  these  preparations. 
It  may  be  well  to  add  that  the  above  solution  of  peptonized  iron 
has  a  wonderful  power  in  the  masking  of  the  taste  of  alkaloids. 
LIQUOR  FERRI  ALBUMINATE. 
The  National  Formulary  product  is  a  brownish-yellow  liquid, 
clear  in  neither  transmitted  nor  reflected  light.  Taste  aromatic, 
sweet,  then  slightly  astringent.  The  solution  cannot  be  filtered,  and 
a  more  or  less  gelatinous  precipitate  soon  appears.  The  National 
Formulary  states  that  each  4  c.c.  contains  about  -026  gramme  Fe, 
(corresponding  to  -65  per  cent.  Fe),  yet  the  1 30  c.c.  of  oxychloride 
solution  can  only  furnish  an  iron  content  of  '47775  per  cent.  The 
solution  cannot  be  considered  acceptable. 
The  formula  calls  for  dried  egg  albumen,  good  qualities  of  which 
are  not  easily  obtainable,  at  least  on  the  drug  market,  although 
dealers  in  bakers'  supplies  have  some  excellent  samples.  The  com- 
mercial article  is  largely  adulterated.  Of  four  samples  examined, 
but  one  was  fit  for  use  in  the  N.  F.  formula. 
With  good  dried  egg  albumen  hard  to  procure,  it  seems  prefer- 
able to  use  fresh  egg  albumen  so  readily  obtainable.  It  represents 
about  12  per  cent,  dried  albumen. 
Solution  of  ferric  chloride  yields  a  completely  soluble  albuminated 
iron,  and  should  be  used  in  place  of  the  solution  of  oxychloride  of 
iron  which  yields  an  incompletely  soluble  albuminate. 
A  reconstructed  formula  based  on  these  points  yields  a  product 
which  has  a  beautiful  claret-red  color,  and  is  an  acceptable  prepar- 
ation. 
