340  Pharmaceutical  Notes.  { Am '£j^J^ 
thorough  decomposition,  while  the  other  preparations  exposed  to  the 
same  influences  are  still  in  a  good  condition. 
I  may  as  well  state  here,  that  Mr.  Campbell's  process  was  tried,  but 
with  no  success  whatever.  The  drug,  it  is  true,  was  pretty  well  ex- 
hausted (this  is  what  Mr.  C.  claims  principally  for  his  process),  and 
very  well  represented  in  the  product,  which  was  at  first  very  pretty  and 
transparent,  but  in  a  short  time  the  separation  commenced  and  con- 
tinued on,  until  now  it  is  a  very  muddy  and  unsightly  preparation. 
PHARMACEUTICAL  NOTES. 
BY  CARL  S.  N.  HALLBERG,  PH.G. 
[Abstract  from  an  Inaugural  Essay.) 
Medicated  Waters.— The  magnesia  process  has  some  advantage  in 
making  a  clear  preparation  when  finished,  but,  as  the  object  is  to  have 
a  pure  medicated  water,  this  process  is  not  desirable,  as  the  water  is 
mot  free  from  magnesia. 
The  hot  water  method  has  not  this  objection.  I  have  tried  several 
modi  operandi,  of  which  the  following  is  the  most  satisfactory  : 
Pour  boiling  water  in  a  strong  bottle  or,  preferably,  a  demijohn,  drop 
the  requisite  amount  of  oil  on  a  folded  filter,  and  put  this  filter  in  the 
hot  water.  Upon  agitation  the  filter  will  be  reduced  to  a  pulp,  and 
the  oil  readily  dissolved.  After  standing  a  day  or  two,  occasionally 
shaking  it,  filter,  if  necessary,  through  more  pulp. 
This  water  is,  perhaps,  not  quite  as  clear  a  preparation  as  the 
product  of  the  magnesia  process,  but  is  unquestionably  superior. 
In  Camphor  Water,  the  magnesia  process  may  also  be  dispensed  with 
to  an  advantage.  I  have  obtained  satisfactory  results  by  powdering 
camphor  with  sufficient  alcohol,  then  triturating  with  water  gradually 
added,  and  filtering  after  several  days. 
For  Soap  Liniment,  the  use  of  castor  oil  soap  has  been  advocated  in 
some  journals,  which  would,  no  doubt,  answer  the  purpose  admirably. 
The  following  modified  formula  of  the  "  Pharmacopoeia, "  with  my 
experience  has  worked  well : 
Take  of  Castile  soap,     .  .  4   troy  ounces, 
water,         .  .  14  fluidounces, 
camphor,  .  .  2    troy  ounces, 
ol.  rosemary  .  .  •      h  fluidounce, 
strong  alcohol,  .  .  1 J  pint. 
