2.  Alcoholic;     EXTBACTUM     EENNiE     AlCO-

HOLiciTsi,  L. — Guibort.)     Senna  (in  powder),

1  part  i  rectified  spirit,  5  parts ;  heat  gradu-
ally to  boiling,  let  it  cool;  in  24  hours  ex-
press, strain,  and  repeat  the  process  with  fresh
spirit;  lastly,  distil  and  evaporate.  Proof
spirit  answers  for  this  purpose.
3.  (Fluid ;  EXTEAOOTM  SENN^  riTJIDUM,
L. — Ph.  (U.  S.)  Senna  (in  coarse  powder),  2J
lbs. ;  spirit  (at  or  near  proof),  64  fl.  oz. ;  mace-
rate 24  hours,  then  act  by  displacement,  sub-
sequently adding  weak  spirit  (1  of  rectified
spirit  to  3  of  water)  until  10  pints  of  tincture
are  obtained ;  evaporate  to  1  pint,  filter,  add
sugar,  20  oz.,  and  oil  of  fennel,  1  fl.  dr.  (dis-
solved in)  compound  spirit  of  ether,  2  fl.  dr.
Every  fl.  oz.  represents  1  oz.  of  senna.
Extract  of  Smoke.  St/n.  ExTEACitrM  lULi-
GINIS,  L.     Prep.    1.  (Aqueous.)     Wood-soot,

2  oz. ;  water,  1  pint ;  boil  to  16  fl.  oz.,  filter,
and  evaporate.
2.  (Acetic.)  Wood-soot,  2  oz. ;  distilled
vinegar  and  water,  of  each,  ^  pint;  as  the
last.  Formerly  reputed  antispasmodic,  altera-
tive, &c. — Dose,  3  to  6  gr.,  2  three  tiii)es  a
diiy;  in  dyspepsia,  hysteria,  cancer,  scrofula,
and  various  syphilitical  affections.
Extract  of  Snake-root.  See  Ezteact  of
Sene&a.
Extract  of  Black  Snake-root  (fluid).  Si/n.
Exteaotum  oiMiciFuaa;  blttidum  (Ph.  U.  S.).
frep.      As  ILtflD    EXTEACT  OF   OUBEBS.      (Ph.
U.S.)

Extract  of  Soap'wort.  Si/n.  Exteaotum
SAPOifAEi.E,  L.  Frep.  (P.  Cod.  &  Ph.  Bad.)
Prom  the  dried  roots  of  soapwort  {Saponaria
officinalis),  as  exteaot  of  bistoet — P.  Cod.
Aperient  and  alterative. — Dose,  15  gr.  to  i  dr.
Extract  of  Spruce.  See  Essence  of
Speuoe.
