FORMULA  FOR  THE  FLUID  EXTRACTS. 
547 
EXTRACTUM  KRAMERLE  FLUIDUM. 
Take  of  Rhatany  root,  in  powder  (60  to  the  inch)  16  ounces. 
Sugar,  12  ounces. 
Water,  a  sufficient  quantity. 
Moisten  the  Rhatany  with  half  a  pint  of  water,  let  it  stand  an 
hour,  pack  it  closely  in  a  conical  percolator,  cover  it  with  a  disc 
of  cloth,  and  pour  on  water  until  four  pints  have  slowly  passed. 
Evaporate  the  liquor  on  a  water  bath  to  twelve  fluid  ounces, 
add  the  sugar,  and  continue  the  evaporation  until  the  whole 
measures  a  pint,  and  strain. 
Thus  prepared,  fluid  extract  of  Rhatany  is  about  two  and  a 
half  times  the  strength  of  the  officinal  syrup,  and  affords  a  very 
elegant  astringent  preparation  for  mixtures.  At  first  it  was 
determined  to  prepare  this  extract  by  the  formula  for  the  Fluid 
Extract  of  Cinchona,  and  when  so  made  it  is  evidently  charged 
with  the  astringency  of  the  drug,  but  the  result  is  an  opaque 
syrupy  liquid,  which  by  dilution  with  water  gives  a  precipitate 
of  apotheme.  It  is  absolutely  necessary  to  have  the  Rhatany 
in  a  uniform  powder  to  succeed  by  the  above  recipe,  so  that  the 
percolation  in  an  unobstructed  funnel  shall  be  quite  slow. 
EXTRACTUM  JUGLANDIS  FLUIDUM. 
Take  of  Butternut  bark,  finely  bruised,       16  ounces, 
Sugar,  12  " 
Alcohol, 
Water,  of  each,  a  sufficient  quantity. 
Mix  one  part  of  alcohol  with  three  parts  of  water,  put  the 
bark  in  a  suitable,  close  vessel,  pour  oyer  it  two  pints  of  the 
diluted  alcohol,  and  digest  at  a  temperature  not  exceeding  120° 
for  twenty-four  hours,  and  express  strongly.  Return  the  marc 
to  the  vessel  and  again  digest  in  two  pints  of  the  mixture  for 
twelve  hours,  and  express.  Unite  the  liquids,  evaporate  them 
over  a  water  bath  to  ten  fluid  ounces,  filter  the  liquor,  and 
dissolve  in  it  the  sugar,  and  strain  so  as  to  make  a  pint  of  fluid 
extract. 
In  the  same  manner  prepare 
EXTRACTUM  QUASSLE  FLUIDUM, 
From  Quassia,  finely  rasped. 
Remarks. — It  would  have  been  preferable  to  place  Fluid 
