4 
Syrujps  hy  Percolalion. 
( Am.  Jour.  Pliarm, 
I      Jan.,  1881. 
tion.  For  instance:  It  is  not  necessary  to  filter  the  aqueous  tincture 
of  orange  peel  when  syrup  as  aurantii  corticis  is  prepared,  but  after 
adding  water  to  the  evaporated  portion,  as  directed,  the  turbid  liquid 
may  be  immediately  percolated  with  the  sugar;  or,  for  syrupus 
ipecacuanha©,  two  fluidounces  of  fluid  extract  of  ipecacuanlia 
are  diluted  with  12  fluidounces  of  water  and,  without  filtering, 
may  be  percolated  with  26  troyounces  of  sugar  for  32  fluid- 
ounces  of  syrup.  In  each  case  a  transparent  syrup  results.  Syrupus 
scilke  compositus  may  be  prepared  in  two  ways.  The  tincture  of 
seneka  and  squill  is  prepared  by  percolation,  then  evaporated  to  half  a 
pint  and  14  ounces  of  water  added,  just  as  the  Pharmacopoeia  directs.. 
To  this  the  tartrate  of  antimony  and  potassium  is  added,  or  the  lat- 
ter can  also  be  dissolved  in  the  water  before  mixing  with  the  evaporated 
solution;  the  mixed  solution  is  then  percolated  with  42  troyounces  of 
sugar,  and  suflicient  water  is  added  through  the  percolator  until  the 
percolate  measures  three  pints.  Another  method  is,  to  use  the  fluid 
extract  of  squill  and  seneka,  and  proceed  the  same  as  above.  Both 
methods  furnish  good  products,  only  the  latter  contains  some  alcohol 
from  the  fluid  extracts  Avhich  the  former  does  not. 
Syrupus  Ferri  lodidi. — The  filtered  solution  of  iodide  of  iron,  pre- 
pared from  2  troyounces  iodine,  quant,  sat.  of  iron  and  water,  meas- 
uring 10  fluidounces,  is  percolated  with  16  troyounces  of  sugar,  and^, 
if  necessary,  suflicient  distilled  water  is  added  to  make  the  product 
measure  20  fluidounces.  In  this  instance  a  filtered  solution  is  pre- 
ferable, although  one  not  filtered  could  be  used. 
The  other  syrups  of  the  Pharmacopoeia  can  be  made  in  the  same 
manner,  using  for  each  the  tincture  or  aqueous  solution,  as  directed^ 
and  then  percolating  with  sugar,  either  the  quantity  prescribed  or  as 
much  as  the  syrup  ought  to  contain. 
A  goodly  number  of  physicians  prescribe  fruit  syrups,  such  as  rasp- 
berry, strawberry,  etc.  The  exquisite  flavor  of  these  is  preserved  to 
the  possibly  fullest  degree  by  percolation.  It  is  inexcusable  for  an 
apothecary  to  dispense,  in  prescriptions,  the  artificial  preparations. 
During  the  respective  seasons  of  the  fruits  any  convenient  quantity  of 
fresh,  ripe  fruit  is  expressed,  the  expressed  juice  is  allowed  to  ferment 
and  percolated  with  sugar  quant,  sat.  Strawberry  syrup  was  prepared 
as  follows :  A  gallon  of  fresh,  plump  fruit,  after  being  pounded  into 
a  pulp  of  uniform  consistency,  in  a  porcelain  mortar,  was  put  into  a 
