^eptembefhi903!)'}    American  Pharmaceutical  Association.  443 
quantity  to  make  1  ooo  c.c.  Next  add  a  heaping  teaspoonful  of 
purified  coarse  animal  charcoal  to  the  syrup,  shake  well  and  set  aside 
one  or  two  days,  shaking  occasionally.  Then  filter  through  white 
filter  in  a  covered  funnel. 
In  the  discussion  Mr.  Ebert  said  that  there  was  no  difficulty  in 
obtaining  a  pure  crushed  sugar,  or  granulated  sugar,  by  paying  a 
little  more  for  it.  There  was  some  discussion  on  the  use  of  glycerin 
in  the  syrup,  and  Mr.  Eliel  said  that  there  was  no  difficulty  in  mak- 
ing a  satisfactory  preparation  according  to  the  U.  S.  P.  formula  if 
the  directions  were  carefully  followed  and  cut  loaf  sugar  used. 
A  Circulatory  Apparatus  for  Making  Solutions  of  Iodine. 
By  M.  L  Wilbert. 
The  author  uses  a  simple  circulatory  apparatus,  made  from  a 
wide-mouth  bottle  and  an  ordinary  test  tube.  A  test  tube  having 
an  outside  diameter  of  from  2  to  2.5  cm.  is  to  be  preferred.  This 
should  have  from  12  to  15  holes,  about  one  1  mm.  in  diameter,  in 
the  bottom  and  lower  portion  o  the  side  of  the  tube.  The  outer 
diameter  of  the  tube  should  fit  closely  the  inner  side  of  the  neck  of 
the  bottle ;  the  tube  can  then  be  held  at  any  height  by  using  a 
heavy  rubber  band,  this  at  the  same  time  acting  as  a  stopper  for  the 
bottle. 
For  making  200  c.c.  of  tincture  of  iodine,  150  c.c.  of  alcohol  are 
put  in  the  wide-mouth  bottle,  the  rubber  band  is  then  adjusted  so 
that  the  upper  row  of  perforations  in  the  tube  are  well  above  the 
line  of  the  liquid,  the  necessary  amount  of  iodine  is  then  placed  in 
the  tube  and  the  whole  apparatus,  closely  stoppered,  is  then  set 
aside  for  from  one-half  to  two  hours  in  a  cool  dark  place.  When 
all  the  iodine  is  dissolved,  the  solution  is  poured  into  a  graduated 
flask,  or  suitable  receptacle,  the  circulatory  apparatus  is  washed  out 
with  the  remaining  portion  of  the  alcohol,  and  this  is  then  added  to 
the  first  portion  to  make  up  the  required  amount.  For  making 
Lugol's  solution,  or  the  U.  S.  P.  test  solution  of  iodine,  about  three- 
fourths  of  the  required  water  is  placed  in  the  bottle,  the  tube 
adjusted  as  before  ;  the  potassium  iodide  is  then  fir>t  dissolved,  the 
apparatus  well  shaken  to  mix  the  solution,  the  iodine  added  and  the 
apparatus  stoppered  and  set  aside.  When  the  iodine  is  dissolved, 
the  preparation  is  finished  by  washing  the  apparatus  with  sufficient 
distilled  water  to  make  up  the  required  amount. 
