PHARMACEUTICAL  GLEANINGS. 
229 
specific  properties,  claiming  for  it  a  trial  at  the  hands  of  practi- 
tioners.   Dr.  Butler's  recipe  is  as  follows  : — 
Take  of  Root  of  Hydrangea        lb.  ii. 
Water  Oxii. 
Boil  to  four  pints,  strain,  and  add 
Honey  Oii. 
Boil  further  to  two  pints.     The  dose  is  a  teaspoonful  twice  or 
three  times  a  day.    I  have  prepared  the  fluid  extract  of  lat- 
ter time  by  the  following  modified  recipe,  which  is  quite  satisfac- 
tory :— 
Take  of  Hydrangea        lb.  j. 
Water  6  pints,  or  sufficient. 
Boil  the  root  in  successive  portions  of  water,  for  a  long  time, 
mix  this  with  honey  Oij.,  and  further  evaporate  to  Oii.  The 
dose  of  this  is  the  same  as  the  foregoing,  although  less  concen- 
trated. 
The  results  of  its  use  in  irritable  conditions  of  the  urethra 
have  proved  highly  satisfactory,  although  its  value  as  a  specific 
in  lithiasis  requires  confirmation. 
GLEANINGS. — PHARMACEUTICAL  AND  MEDICAL. 
Fluid  Extract  of  Red  Bark  Mr.  John  Canavan,  in  the  No- 
vember number  of  the  New  York  Journal  of  Pharmacy,  [1854,] 
gives  a  formula  for  fluid  extract  of  bark,  without,  apparently,  be- 
ing aware  that  two  formulae  for  similar  preparations  were  pub- 
lished in  vol.  xxiii,  p.  129,  of  this  Journal,  and  one  of  them  no- 
ticed at  page  262,  U.  S.  Dispensatory,  10th  edition.  The  pre- 
paration made  by  Mr.  Taylor's  formula  has  been  extensively  used 
and  approved  of,  and  its  efficacy  is  attributable  to  its  being  made 
from  calisaya  bark,  and  not  containing  any  sulphuric  acid,  so 
that  the  alkaloids  are  presented  in  the  same  state  of  combination 
that  occurs  naturally,  viz  ;  kinates  and  cinchotannates.  Owing 
to  the  presence  of  the  latter,  Mr.  Taylor's  fluid  extract  is  always 
opaque  when  cold,  although  transparent  when  hot.  The  follow- 
ing is  Mr.  Canavan's  formula  : — 
Take  of  Powdered  red  bark,         8  ounces  (Troy.) 
Diluted  alcohol,  a  sufficient  quantity. 
Diluted  sulphuric  acid,  "  " 
White  sugar,  8  ounces  (Troy.) 
