Am.  Jour.  Pharm.  ) 
February,  1911.  J 
Abstracts  of  Papers. 
79 
and  3  grammes  of  potassium  hydroxide,  dissolved  in  35  c.c.  of  water, 
added.  This  was  then  heated  upon  the  water-bath  until  saponifica- 
tion was  complete  and  allowed  to  stand  for  from  24  to  48  hours,  to 
allow  the  separation  of  the  mercuric  oxides.  The  mixture  was  then 
filtered  (the  filtrate  being  reserved  to  ascertain  if  any  further  deposit 
occurred).  The  precipitate  was  then  washed  well  and  transferred, 
paper  and  all,  to  an  Erlenmeyer  flask  and  50  c.c.  of  nitrohydrochloric 
acid  added.  The  flask  and  contents  were  shaken  occasionally  until 
solution  was  complete.  The  solution  was  then  diluted  with  50  c.c. 
of  water  and  the  paper  pulp  filtered  off  and  washed  well.  The  fil- 
trate was  then  evaporated  to  dryness  in  capsule,  and  the  residue  of 
mercuric  chloride  taken  up  with  100  c-c.  of  water  and  dissolved  by 
the  aid  of  heat.  Hydrogen  sulphide  gas  was  next  passed  in  until 
saturation  ;  the  precipitated  mercuric  sulphide  filtered  off  and  washed. 
Next,  the  precipitate,  paper  and  all,  was  transferred  to  a  glass- 
stoppered  bottle,  an  excess  30  c.c.  of  ^  iodine  solution  added  and 
5  c.c.  of  carbon  disulphide.  The  bottle  was  shaken  for  five  minutes 
and  allowed  to  stand  for  half  an  hour.  Then  the  excess  of  iodine 
was  titrated  with  ^  sodium  thiosulphate  solution." 
Some  Formulas  for  Elixirs  Proposed  for  Recognition  in  the 
Revision  of  the  National  Formulary. 
George  M.  Beringer,  N.  J.  Pharm.  Assn.,  offers  some  formulas 
for  elixirs  to  be  included  in  the  next  revision  of  the  N.F.  with  the 
hope  that  they  be  tried  and  criticized  by  practical  pharmacists. 
In  speaking  of  elixir  of  calcium  lactophosphate  the  author  states 
that  as  the  salt  is  now  commercially  obtainable  a  definite  weight 
of  it  should  be  directed  to  be  dissolved  in  aromatic  elixir.  The 
following  formula  is  suggested : 
Calcium  lactophosphate   25.0  Gm. 
Lactic  acid   8.0  c.c. 
Aromatic  elixir  to  make   1000.0  c.c. 
The  present  National  Formulary  formula  for  elixir  of  glycero- 
phosphates is  deficient  in  flavoring  as  it  contains  only  300  c.c.  of 
aromatic  elixir.  He  modifies  the  formula  and  adds  a  requisite 
amount  of  compound  spirit  of  orange.  Lactic  acid  is  used  instead 
of  phosphoric  acid  as  it  seems  to  be  more  effective  in  preventing 
precipitation  of  these  salts.    The  modified  formula  is  as  follows  : 
