102  Fluid  Extract  of  Gundurango  Baric.  {AJLJXi,w"" 
The  above  process  is  not  used  for  dispensing  chalk  mixture  in  my 
shop,  but  was  only  tried  by  way  of  experiment,  to  see  if  it  would  keep 
during  the  hot  summer  months  from  decomposition. 
The  following  formula  has  been  used  by  me  for  some  time  back  : 
1^.       Cretae  Prsept.  gss. 
Sacchari  albi 
Pulv.  acacise  aa  gij. 
Olei  Cinnamomi       gtt  viij. 
Mix  intimately. 
For  every  fluid-ounce  of  chalk  mixture  I  take  one  drachm  of  the 
mixed  powders,  and  rub  them  well  up  with  an  ounce  of  distilled  water, 
and  of  course  the  mixture  is  free  from  acidity.    In  cases  of  diarrhoea 
in  children,  which  generally  is  the  result  of  fermentation,  the  glycerin 
formula  seems  to  be  preferable  to   the  one  containing  sugar,  the 
former  mixture  being  and  remaining  bland,  nutritious  and  with  SOOth- 
cs  o  " 
ing  effect  on  the  bowels  ;  to  a  certain  extent  it  arrests  fermentation, 
and  the  glycerin  fully  protects  the  gum  from  decomposition. 
Pottsville,  Fa.,  Feb.,  1872. 
FLUID  EXTRACT  OF  GUNDURANGO  BARK. 
By  Samuel  Campbell. 
The  attention  of  the  Medical  and  Pharmaceutical  professions  is 
now  attracted  to  this  drug  by  the  many  rumors  concerning  the  won- 
derful cures  effected  by  its  use  in  the  treatment  of  cancer,  syphilis, 
and  kindred  diseases,  and  there  is  no  doubt  that  many  have  been  de- 
terred from  giving  it  a  trial  on  account  of  the  exorbitant  prices  charged 
for  it,  (altogether  speculative),  varying  from  one  hundred  dollars  down 
to  nine  dollars  per  pound.  And  the  glaring  inconsistency  of  difference 
in  price  between  the  commercial  fluid  extract  and  the  drug  in  sub- 
stance, the  former  quoted  at  ten  dollars  a  pint,  (representing  one 
pound  of  the  bark),  and  the  latter  at  eighteen  dollars  per  pound, 
has  induced  me  to  submit  the  following  formula  as  the  result  of  a 
series  of  experiments  whereby  retail  pharmaceutists  may  prepare  and 
thereby  furnish  a  reliable  preparation  to  their  medical  patrons, 
and  aid  in  designating  the  true  therapeutical  value,  (if  it  has  any),  of 
this  drug.  The  bark  was  purchased  from  the  well-known  firm  of 
McKesson  &  Robbins,  of  New  York  City,  in  its  crude  state,  and 
ground  under  my  own  supervision,  hence  its  reliability  cannot  be 
questioned.    The  formula  is  as  follows  : 
