A"AjS!,i,i8w",y      Bromide  in  Iodide  of  Potassium.  167 
ral  inches  longer  than  the  suppository,  and  keeping  it  on  tension,  so 
as  to  occupy  a  central  position  the  entire  length,  then  melt  the  wax 
and  cacao  butter  carefully,  mixing  therewith  afterwards  the  opium, 
and  immediately  pour  into  the  moulds  and  cool  rapidly  in  ice- 
water,  when  they  can  usually  be  withdrawn,  or  should  there  be  dif- 
ficulty, as  there  sometimes  is,  immerse  for  a  moment  in  hot  water  and 
they  can  be  easily  withdrawn. 
When  used,  they  are  inserted  into  the  urethra  to  the  part  affected, 
and  allowed  to  remain  till  the  patient  is  relieved,  and  then  by  means 
of  the  string  is  withdrawn.  A  portion  of  the  suppository  having 
melted  by  the  warmth  of  the  parts,  produced  the  desired  end,  and 
miraculous  as  the  result  may  seem,  the  pain  was  reduced  from  one 
hour  to  five  minutes. 
Novel  as  this  thing  may  seem,  I  feel  that  it  is  worth  bringing  to 
the  notice  of  the  Association,  believing  that  this  form  of  suppository 
can  be  used  with  the  same  good  result  in  other  diseases  peculiar  to 
those  parts,  and  I  have  wondered  whether  urethritis  and  kindred 
inflammations  might  not  be  cured  by  the  same  means. 
I  have  no  doubt  the  mode  of  manufacture  can  and  will  be  much 
modified,  should  the  urethral  suppository  receive  the  favorable  atten- 
tion it  merits. — Proceedings  of  the  American  Pharm.  Assoc.,  1871, 
p.  482. 
DETECTION  AND  ESTIMATION  OF  BROMIDE  IN  IODIDE  OF 
POTASSIUM. 
By  M.  Lepage,  Pharmacist  at  Gisors. 
Since  the  price  of  bromide  of  potassium  is  considerably  lower  than 
that  of  the  iodide,  the  latter  salt  is  often  met  with  adulterated  with 
the  former.  The  author  recommends  a  process  for  its  detection, 
which  is  based  upon  the  property  of  mercuric  chloride,  to  precipitate 
from  a  mixture  of  iodide  and  bromide  of  potassium  only  the  iodide, 
the  mercuric  bromide  being  soluble  in  water.  The  iodide  must  be 
free  from  chloride,  carbonate  and  iodate.  One  gramme  of  the  salt 
is  then  dissolved  in  30  grms.  pure  water.  On  the  other  hand  a  solu- 
tion is  made  of  one  gramme  corrosive  sublimate  in  20  cc.  distilled 
water,  which,  by  means  of  a  burette,  is  gradually  added  to  the  first 
solution,  until  it  just  ceases  to  produce  a  turbidity.  If  the  iodide  is 
pure,  at  least  16  cc.  of  the  mercuric  solution  are  required  for  this 
purpose;  if  impure,  the  remaining  solution  will  exceed  the  volume  of 
