Am.  Jour.  Pharm.  1 
December,  1910.  J 
Progress  in  Pharmacy. 
S77 
0.5  gramme,  three  or  four  times  a  day  (/.  Am.  M.  Ass.,  1910,  v.  55, 
p.  666). 
Arsenoferratin. — Sodium  arsenoferrialbuminate  is  an  arsenic 
iron  albumin  compound,  obtained  by  introducing  the  element 
arsenic  into  the  molecule  of  ferrialbuminic  acid.  It  is  said  to 
contain  the  equivalent  of  6  per  cent,  of  metallic  iron  in  organic 
combination,  and  the  equivalent  of  0.06  per  cent,  of  elementary 
arsenic.  Arsenoferratin  is  a  brown,  almost  odorless  and  tasteless 
powder  that  is  easily  soluble  in  dilute  alkaline  solutions.  The 
dose  is  0.5  gramme,  three  or  four  times  a  day  (/.  Am.  M.  Ass., 
1910,  v.  55,  p.  666). 
Ginseng. — A  news  note  announces  that  Dr.  K.  Miyake  and  Mr. 
Toniiye  have  been  sent  to  this  country  by  the  Korean  Government 
to  investigate  the  cultivation  and  particularly  the  diseases  of  gin- 
seng. This  drug  is  considered  to  be  of  great  importance  in  Korea 
and  is  under  a  government  monopoly.  During  the  past  few  years 
there  has  been  a  remarkable  reduction  in  the  output,  due  to  various 
diseases  similar  to  those  affecting  the  plant  in  this  country  {Science, 
1910,  v.  32,  p.  625). 
Hexamethylenamine. — Molecular  combinations  of  hexamethyl- 
entetramine  with  guaiacol  are  being  experimented  with  and  promise 
to  be  useful  additions  to  guaiacol  therapy  (Chem.  Tech.  Reper- 
torium,  1910,  v.  34,  p.  509). 
Hexamethylenamine  in  Pellagra. — B.  B.  Bagby  reports  unusually 
satisfactory  results  from  the  treatment  of  a  case  of  pellagra  with 
15  grain  doses  of  hexamethylenamine,  given  three  times  a  day, 
and  quotes  Beverly  R.  Tucker  as  having  had  equally  promising 
results  from  the  use  of  the  same  drug  (/.  Am.  M.  Ass.,  1910, 
v.  55,  p.  1663). 
Hydrogen  Peroxide. — Linwood  A.  Brown  discusses  the  de- 
termination of  free  acid  in  hydrogen  peroxide  solutions  and  points 
out  that  the  U.S. P.  test  for  free  acid  does  not  give  correct  results. 
He  reports  a  number  of  experiments  and  concludes  that  acetanilid 
acts  the  part  of  a  free  acid  and  seriously  interferes  with  securing 
accurate  results.  Direct  titration  in  the  cold  was  found  to  be 
satisfactory  and  gives  results  that  are  sufficiently  accurate  for  all 
practical  purposes  (/.  Ind.  and  Eng.  Chem.,  1910,  v.  2,  p.  377). 
Hydronaphthol. — A  sample  of  hydronaphthol  examined  in  the 
Chemical  Laboratory  of  the  American  Medical  Association  had 
the  characteristic  appearance,  odor,  and  taste  of  naphthol  and 
