400 
Ethereal  Tincture  of  Iodoform. 
f  Am.  Jour.  Pears*. 
X    Sept.  1, 1873. 
tion,  either  by  resorting  to  the  rotation  method,  or  suspending  the 
material  in  the  upper  portion  of  the  liquid,  by  the  aid  of  a  net,  simi- 
larly to  the  process  much  used  for  dissolving  the  licorice  in  sticks. 
With  the  employment  of  strong  alcohol,  the  powder  dissolves  at  once, 
without  cohering  in  the  least ;  a  short  period  of  trituration  suffices  to 
effect  complete  solution  of  the  total  soluble  matter. 
The  liquid  does  not  filter  readily,  but  runs  through  a  strainer  per- 
fectly clear,  leaving  the  insoluble  residue,  even  after  pressure,  entirely 
in  the  strainer. 
The  writer  prepares  tincture  of  kino  as  follows  : 
Take  of  Kino,  3  troy  ounces. 
Strong  alcohol, 
Water,  of  each  sufficient. 
Place  the  kino  into  a  spacious  mortar,  and  triturate  it  thoroughly  ; 
then  pour  on  to  the  powder  half  a  pint  of  strong  alcohol,  and  con- 
tinue the  stirring  a  short  time  ;  pour  off  the  clear  liquid,  after  the 
residue  has  subsided,  and  add  half  a  pint  more  of  strong  alcohol  ; 
triturate  again  as  before,  and  unite  the  whole  with  the  first  solution  ; 
set  the  mixture  aside  for  about  half  an  hour,  shaking  it  up  frequently, 
then  pour  the  whole  of  it  upon  a  muslin  strainer,  and  press  out  the 
liquid  ;  to  the  residue  add  3  fluidounces  of  strong  alcohol ;  press  it 
out  again ;  unite  the  strained  liquids,  and  complete  the  tincture  by 
adding  water  to  the  measure  of  2  pints,  and  mix. —  The  Pharmacist, 
August  j  1873.  , 
ETHEREAL  TINCTURE  OF  IODOFORM* 
BY  MM.  ODIN  AND  LEYMARIE. 
At  the  request  of  Dr.  Gubler,  who  uses  an  ethereal  solution  of 
iodoform  as  a  topical  application,  the  authors  sought  to  ascertain  the 
most  favorable  conditions  for  its  preparation,  and  to  determine  the 
relative  proportions  in  which  the  iodoform  is  soluble. 
(1.)  A  solution  prepared  in  a  flask  of  white  glass  after  a  little  time 
became  discolored  ;  the  canary  yellow  passed  to  an  amber,  and  then 
brown  color.  This  change  was  the  result  of  the  liberation  of  a  por- 
tion of  the  iodine,  which  colored  starch  paper  blue. 
(2.)  When  iodoform  previously  pulverized  was  used,  the  solution, 
•exposed  to  diffused  light,  altered  much  more  quickly  than  the  first. 
*  Repertoire  de  Pharmacie.  June  25,  p.  390. 
