» 
ON  FLAVORING  EXTRACTS.  295 
EXTRACT  OF  ORANGE. 
Take  of  the  Exterior  rind  of  fresh  oranges,  two  ounces. 
Alcohol,  95°,  a  pint. 
Recent  oil  of  orange,  two  fluidounces. 
Proceed  as  in  the  recipe  for  Extract  of  Lemons. 
It  is  much  more  difficult  to  obtain  oil  of  orange  in  a  fit  state 
for  making  this  extract  than  that  of  lemons  ;  and  none  should 
be  used  that  is  not  perfectly  free  from  the  terebinthinate  odor 
developed  by  exposure  and  age.  In  purchasing  the  oil  for  this 
purpose,  it  should  be  put  into  small  bottles  nearly  full,  closely 
sealed  and  kept  in  a  dark  place. 
EXTRACT  OF   BITTER  ALMONDS. 
Take  of  Oil  of  bitter  almonds,  two  fluidrachms. 
Alcohol  (95°),  a  pint. 
Tincture  of  turmeric  or  safflower,  half  afluidrachm  or  q.  s. 
Mix  them.    The  directions  accompanying  this  preparation 
should  state  that  it  is  poisonous  in  quality. 
It  is  not  unusual,  in  England,  to  deprive  the  oil  of  bitter 
almonds,  to  be  used  for  flavoring,  of  its  hydrocyanic  acid,  before 
diluting  it.  As  some  may  prefer  to  do  this,  to  secure  their  pre- 
paration from  the  danger  always  incident  to  selling  so  potent  a 
poison  as  the  oil  of  bitter  almonds  for  culinary  purposes,  even 
as  a  solution,  we  offer  the  following  process  for  removing  the 
poison. 
Take  of  Oil  of  bitter  almonds,  two  ounces. 
Sulphate  of  iron,  (U.  S.  P.),  an  ounce. 
Lime,  recently  burnt,  half  an  ounce. 
Water,  a  sufficient  quantity. 
Dissolve  the  iron  salt  in  half  a  pint  of  water,  slake  the  lime 
with  a  half  a  pint  of  the  same  fluid,  and  mix  them.  Shake  this 
thoroughly  with  the  oil  in  a  bottle,  then  distil  in  a  glass  retort 
or  small  tin  still,  with  a  good  refrigeratory,  until  the  purified  oil 
of  bitter  almonds  has  all  distilled  over,  which  is  known  by  the 
distilled  water  ceasing  to  be  milky  and  odorous.  The  heavy  oil, 
after  allowing  time  for  its  separation  and  subsidence,  is  removed^ 
for  use. 
/ 
