180  Fluid  Extrats  of  the  New  Pharmacopoeia.     { "^"^p^-i'^gs.?"* 
ounce  bottle;  the  fluid  extract  appears  to  be  in  perfect  condition.  If 
glycerin  is  a  necessary  ingredient  of  the  officinal  menstruum,  then  that 
recommended  by  the  Philadelphia  College  of  Pharmacy  is  to  be  pre- 
ferred, as  the  product  keeps  remarkably  well  without  such  addition. 
ExTRACTUM  Lobelia  Fluidum. — Fluid  Extract  of  Lobelia. — 
This  is  also  a  newly-introduced  preparation  ;  the  Pharmacopoeia  directs 
the  use  of  diluted  alcohol  as  the  menstruum,  and  the  Philadelphia 
College  of  Pharmacy  recommended  the  same ;  a  sample  thus  made  in 
January,  1880,  now  contains  only  a  slight  precipitate,  the  sides  of  the 
bottle  are  free  of  deposit,  except  that  above  the  fluid  extract  there  is  a 
small  portion  of  waxy  matter,  otherwise  the  preparation  has  kept  very 
well. 
ExTRACTUM  LuPULixi  Fluidum. — Fluid  Extract  of  Lupulin. — 
For  this  preparation  the  Pharmacopoeia  of  1870  directed  stronger 
alcohol,  the  present  Pharmacopoeia  directs  alcohol,  and  the  Phila- 
delphia College  of  Pharmacy  recommended  the  same  menstruum,  and 
also  that  the  powder  be  packed  in  the  percolator  without  previously 
moistening  it  with  a  portion  of  the  menstruum;  this  is  a  very  good 
suggestion,  as  then  the  percolation  proceeds  evenly  and  without  diffi- 
culty, while  if  the  powder  be  first  moistened,  it  is  apt  to  form  a  tough 
mass,  almost  impossible  to  percolate.  A.  sample  of  the  fluid  extract 
prepared  in  November,  1879,  contains  now  only  a  very  slight  precipi- 
tate, and  is  in  most  excellent  condition. 
ExTRACTUM  Matico  Fluidum. — Fluid  Extract  of  Matico. — For 
this  preparation  the  Pharmacopoeia  of  1870  directed  a  menstruum 
composed  of  twelve  fluidounces  of  alcohol,  three  fluidounces  of  glycerin, 
and  one  fluidounce  of  water,  finishing  the  percolation  with  diluted 
alcohol,  and  adding  one  fluidounce  of  glycerin  to  the  dilute  percolate 
before  evaporation.  The  present  Pharmacopoeia  directs  a  menstruum 
composed  of  three  parts  of  alcohol,  and  one  part  of  water,  with  ten 
per  cent,  of  glycerin  in  the  first  one  hundred  parts  of  the  mixture ; 
the  Philadelphia  College  of  Pharmacy  recommended  the  same  men- 
struum. A  sample  thus  prepared  in  December,  1879,  has  now  only 
the  slight  precipitate  which  formed  soon  after  it  was  made,  and  is  in 
every  other  respect  in  excellent  condition ;  another  sample  prepared  at 
the  same  time  with  alcohol,  has  also  only  a  slight  precipitate,  but  there 
is  quite  a  large  deposit  of  matter  on  the  sides  of  the  bottle ;  evidently 
the  officinal  menstruum  is  remarkably  well  suited  for  this  preparation. 
ExTRACTUM  Mezerei  Fluidum. — Fluid  Extract  of  Mezereum. — 
