AmjJanU.ri8??arm  }    Formulas  for  Several  Preparations.  5 
Liquor  Carbonis  Detergens. — Hans  Wilder  published  some  years 
ago,  in  the  Druggists  Circular,  the  following  : 
Tincture  of  quillaia,   \%.  pints. 
Coal  tar,   ...    2  pounds. 
Digest  for  8  days  and  filter. 
The  tincture  of  quillaia  is  to  be  made  by  percolating  two  pounds 
of  soap  bark  with  65  per  cent,  alcohol  until  one  gallon  of  tincture 
is  'obtained.1 
The  British  Pharmaceutical  Conference  adopted  in  the  Unofficial 
Formulary  a  formula  for  this  preparation  under  the  title  of 
Liquor  Picis  Carbonis  (solution  of  Coal  Tar)  : 
Take  of— 
Quillaia  bark  in  No.  20  powder  2  oz. 
Rectified  spirit, 2  a  sufficient  quantity. 
Moisten  the  powder  with  a  suitable  quantity  of  the  menstruum 
and  macerate  for  24  hours  in  a  closed  vessel.    Then  pack  in  a  per- 
colator and  gradually  pour  rectified  spirit  upon  it  until  one  pint  of 
percolate  is  obtained.    To  this  add  : 
Prepared  coal  tar,  4  ounces. 
Digest  at  a  temperature  of  1200  F.  for  two  days.  Allow  to 
become  cold,  decant  and  filter. 
Prepared  coal  tar  is  commercial  coal  tar,  which  has  been  exposed 
in  a  shallow  vessel  to  a  temperature  of  1200  F.  for  one  hour, 
stirring  frequently. 
Solution  of  the  Four  Chlorides. — (Formula  of  Dr.  Wm.  Goodell) : 
Take  of— 
Hydrarg.  bichlor.  corros.,  grj 
Iviq.  Arsenici  clil.,  r  rr^xlviij 
Tinct.  Ferri  chloridi,      j  -  -  f  iv 
AcidiHydrochloricidil.,  > 
Syrupus  Zingiberis,  q.s.  ad  jfiij 
Misce.    Sig. — One-half  to  one  teaspoonful  in  water  after  meals. 
1  Coaltar  saponine  of  Lebeuf. — 
R 
Soap  bark,  1  part. 
Alcohol,  •  •   5  parts. 
Heat  to  boiling  and  filter.  Take  24  parts  of  this  tincture,  digest  it  for  8  days 
in  a  warm  place  with  10  parts  of  coal  tar.  Label  this  :  Tincture  for  coaltar 
saponine.  To  make  the  liquor  use  one  part  of  the  tincture  to  four  parts  of 
water. — J.  W.  England. 
2  Rectified  spirit,  Br.  Ph.  contains  57  per  cent,  by  volume  of  alcohol. 
