Am*ja0n!yimarm'}      Examination  of  Chlorinated  Lime.  13 
as  the  base  was  proven  by  means  of  a  solution  of  sub-acetate  of  lead. 
The  principal  adulterant  found  in  the  market  jellies,  except  in  the 
the  grape,  was  the  artificial  coloring.  On  making  an  aqueous  solution 
of  about  5  grams,  evaporating  this  to  the  consistency  of  a  syrup  and 
to  this  adding  about  100  cc.  of  alcohol  and  warming  slightly,  the  pec- 
tin would  be  precipitated  and  the  coloring  matter  taken  up  in  the  al- 
cohol. This  was  filtered  and  to  the  filtrate  was  added  small  pieces  of 
raw  silk  and  wool  and  boiled  for  some  fifteen  minutes.  The  result 
was  the  silk  and  wool  took  up  the  coloring  and  were  dyed  of  a  light 
red  color.    The  coloring  in  the  genuine  would  not  act  in  this  way. 
In  testing  the  genuine  jelly  for  pectin  with  solution  of  sub-acetate 
of  lead,  the  coloring  matter  was  precipitated  with  the  pectin,  while  in 
the  commercial  jellies  it  remained  in  the  solution,  the  pectin  being 
separated  as  a  light  flesh  colored  precipitate. 
The  market  jellies  in  solution  did  not  present  a  perfectly  clear  li- 
quid, but  on  the  addition  of  ammonia  water  the  color  deepened  con- 
siderably and  the  solution  became  much  clearer. 
Glycerin  was  not  present  in  the  jellies.  This  was  shown  by  precipi- 
tating the  pectin  with  alcohol,  filtering,  evaporating  nearly  to  dryness, 
treating  this  residue  with  one  part  ether  and  two  parts  alcohol,  filter- 
ing, evaporating  to  dryness  and  testing  this  with  the  borax  bead. 
Metals  were  absent  with  the  exception  of  a  little  iron. 
EXAMINATION  OF  CHLORINATED  LIME. 
By  Hermann  M.  Schroeter,  Ph.  G. 
A  Contribution  from  Chemical  Laboratory  of  the  Philadelphia  College  of 
Pharmacy. 
Read  at  the  Pharmaceutical  Meeting,  December  18th. 
Chlorinated  lime  as  a  commercial  product  is  variable  in  composition. 
It  is  therefore  valued  by  the  percentage  of  available  chlorine  which  it 
contains.  The  Pharmacopoeia  requires  at  least  25  per  cent,  of  such 
available  chlorine.  The  following  examination  of  this  article  will 
show  the  average  value  of  same  as  found  in  the  market,  both  in  bulk 
and  in  packages.  That  in  ready  put-up  packages  is  generally  con- 
tained in  pasteboard  boxes,  the  insides  of  which  are  coated  with  resin, 
or  else  in  sealed  tin  cases.  Small  and  large  packages  were  procured, 
as  also  several  samples  in  bulk,  of  which  18  kinds  were  examined. 
The  method  used  was  that  recommended  by  the  Pharmacopoeia  or  the 
