482 
Ext.  Auraniii  Corticis  Ihtidum. 
f  Am.  Jour,  Phabml. 
1    Nov.  1,  1873. 
by  means  of  a  spritz,  and  the  whole  thoroughly  washed  until  the  fil- 
trate measures  sixty  fluid-ounces.  This  causes  a  reprecipitation  of 
the  resinous  substance,  which  necessitates  the  refiltration  of  the  fil- 
trate. To  this  second  filtrate  twenty  fluid-ounces  of  glycerin  is  added, 
and  the  whole  well  mixed. 
This  furnishes  an  extract  containing  in  each  pint  two  fluid-ounces 
less  of  glycerin  than  the  officinal  preparation,  limpid,  perfectly  trans- 
parent, and  one  that  can  be  mixed  with  syrup  without  turbidity,  and 
in  this  respect  will,  I  doubt  not,  meet  the  approval  of  all  lovers  of 
elegant  pharmacy. 
Philadelphia,  Tenth  month  10th,  1873. 
EXTRACTUM  AURANTII  CORTICIS  FLUIDUM. 
By  Munroe  Bond. 
Among  the  numerous  fluid  extracts  admitted  in  the  last  edition  of  the 
Pharmacopoeia  are  many  which  are  scarcely  if  ever  made  use  of,  and 
rarely  called  for  ;  while  there  are  some,  though  not  officinal,  which- 
are  very  frequently  employed. 
Amongst  the  last-named  class  there  is  none  not  officinal  which  is 
more  universally  used  by  the  pharmaceutist  of  to-day  than  a  fluid 
extract  of  sweet  orange  peel. 
Owing  to  the  highly  aromatic  and  somewhat  tonic  properties  which 
the  rind  of  sweet  orange  possesses,  it  is  extensively  used  as  an  ingre- 
dient in  the  multiform  tonics  and  elixirs  which  are  in  vogue  and  so 
popular  at  the  present  time.^ 
I  have  never,  as  yet,  seen  any  formula  published  for  its  prepara- 
tion, and  being  called  upon  quite  often  to  prepare  it,  I  have  used 
various  different  methods  with  a  view  to  ascertain  the  best  way  and 
most  appropriate  menstruum. 
Having  obtained  a  formula  which  furnishes  a  very  satisfactory  pre- 
paration, and  which  I  consider  a  "  desideratum,"  I  present  it  to  the 
readers  of  the  Journal  of  Pharmacy. 
Take  of— 
Sweet  orange  peel  in  moderately  fine  powder,     .       J  xvi. 
Glycerin,   fl.  oz.  iij. 
Alcohol, 
Water,  each  a  sufficient  quantity. 
Mix  fourteen  fluid-ounces  of  alcohol  with  two  fluid-ounces  of  glycerin  \. 
