^""MariSSf™*}    Fluid  Extracts  of  the  New  Pharmacopoeia.  237 
directed  stronger  alcohol ;  the  present  Pharmacopoeia  directs  alcohol, 
and  the  Philadelphia  College  of  Pharmacy  recommended  the  same 
menstruum;  a  sample  thus  prepared  in  December,  1879,  now  contains- 
only  a  very  slight  precipitate,  and  appears  to  have  undergone  no 
change  whatever. 
Having  this  fluid  extract,  it  seems  superfluous  to  have  also  an  offici- 
nal tincture  of  half  its  strength. 
ExTRACTUM  Vjburni  Fluidum. — Fluid  Extract  of  Viburnum. — 
This  newly-introduced  fluid  extract  is  one  of  the  eleven  added  to  the 
list  by  the  Committee  of  Revision.  The  Pharmacopoeia  directs  a 
menstruum  composed  of  two  parts  of  alcohol  and  one  part  of  water  • 
a  sample  prepared  in  August,  1880,  with  diluted  alcohol,  now  contains 
a  considerable  deposit  and  a  thin  coating  on  the  sides  of  the  bottle, 
but  the  fluid  extract  is  still  of  a  deep  red  color,  and  transparent  in  thin 
layers ;  the  stronger  officinal  menstruum  is  no  doubt  the  best  for  this 
preparation. 
ExTRACTUM  Xanthoxyli  Fluidum. — Fluid  Extract  of  Xanthox- 
ylum. — For  this  newly-introduced  preparation  the  Pharmacopoeia 
directs  alcohol,  and  the  Philadelphia  College  of  Pharmacy  recom- 
mended two  parts  of  alcohol  and  one  part  of  water,  as  the  menstruum  ; 
a  sample  thus  prepared  in  December,  1879,  remains  in  good  condition,, 
except  that  a  considerable  quantity  of  a  crystalline  deposit  has  formed, 
which  may  be  readily  redissolved  by  placing  the  bottle  for  a  few 
minutes  in  warm  water ;  a  change  of  menstruum  is  evidently  required, 
but  that  it  need  be  alcohol,  or  even  that  it  need  be  as  strong  as  the 
one  used  for  this  sample,  continued  experiment  only  can  decide. 
ExTRACTUM  ZiNGiBERis  Fluidum. — Fluid  Extract  of  Ginger.- — 
For  this  preparation  the  Pharmacopoeia  of  1870  directed  alcohol  (s.g. 
•835).  The  present  Pharmacopoeia  directs  alcohol,  and  the  Phila- 
delphia College  of  Pharmacy  recommended  the  same  menstruum  • 
samples  thus  prepared  in  November,  1879,  with  Jamaica  and  African 
ginger,  remain  at  present  with  only  a  very  slight  deposit,  and  are 
appanmtly  unchanged. 
Having  now  noticed  the  entire  list  of  officinal  fluid  extracts,  a  brief 
review  will  be  given  of  the  ten  rejected  from  the  list  recommended  by 
the  Philadelphia  College  of  Pharmacy ;  the  first  of  these  is, 
ExTRACTUM  Anthemidis  Fluidum. — Fluid  Extract  of  Chamo- 
mile.— For  this  preparation  a  menstruum  composed  of  one  part  of 
alcohol  and  two  parts  of  water  was  recommended.    A  sample  thus 
