532  REVIEW  OF  PHARMACOPOEIA  HELVETICA. 
have  been  retained,  which  were  left  out  in  the  Prussian  pharma- 
copoeia since  1862. 
Elyeosacchara  are  made  from  2  drops  of  the  volatile  oil  to  60 
grains  sugar ;  elssosaccharum  vanillge  in  the  proportion  of  1:15. 
Electuarium  lenitivum  consists  of  9  powd.  Alexandria  senna, 
1  powd.  coriander,  48  simple  syrup  and  16  pulp  of  tamarinds, 
well  mixed. 
Elixir  pectorale  is  the  old  elixir  e  succo  liquiritiee,  composed 
of  1  licorice,  3  fennel  water  and  1  liq.  ammonii  anisatus. 
Emplastrum  cantharidum  contains  less  than  half  the  cantha- 
rides  of  our  blistering  cerate,  and  is,  we  think,  deficient  in 
strength  and  unreliable.  The  process,  however,  is  a  good  one : 
1  part  finely  powdered  cantharides  is  digested  in  a  steam-bath 
for  several  hours  in  1  p.  oil  of  benne,  and  then  1  turpentine  and 
4  yellow  wax  added. 
Emplast.  cantharidum  perpetuum  and  unguentum  cantharidum 
are  of  about  the  same  strength ;  the  former  consists  of  6  tur- 
pentine, 6  mastic,  1  euphorbium,  2  cantharides ;  the  latter  of  1 
powd.  cantharides  and  4  oil  of  benne,  digested  for  12  hours, 
strained  and  mixed  with  2  yellow  wax. 
Emplastrum  plumb i  simplex  is  boiled,  in  the  usual  way,  from 
10  litharge,  9  lard,  9  oil  of  benne  and  2  water.  Benne  oil  is 
likewise  substituted  for  olive  oil  in  some  ointments,  and  in  plas- 
ters like  emplastrum  cerussse  and  empl.  fuscum. 
The  medicated  plasters  of  our  pharmacopoeia  are,  as  a  general 
rule,  stronger  and  prepared  by  a  simpler  process  than  those  of 
the  Swiss  pharmacopoeia;  the  narcotic  plasters  of  the  latter 
(empl.  conii  and  [hyoscyami)  contain  one-third  of  the  powdered 
herb ;  empl.  opii  one-fifteenth  powdered  opium,  while  ours  con- 
tain about  the  same  proportion  of  the  respective  extracts. 
The  following  is  the  composition  of  some  of  the  compound 
plasters : — 
Emplastrum  frigidum  s.  meliloti  comp. — Wax  2,  suet  3,  lead 
plaster  3,  Burgundy  pitch  4,  and  one  part  of  the  following  mix- 
ture of  powders :  melilot,  galbanum,  olibanum,  fennel,  fenu- 
greek, curcuma,  in  equal  proportions. 
Emplast.  galbani  crocatum. — Wax  8,  lead  plaster  24,  powd. 
galbanum  24,  turpentine  4,  powd.  saifron  3. 
