68  Fluid  Extracts  of  the  New  Pharmacopoeia.  { ''^"'i^eby iss?"""^ 
The  ten  rejected  were :  Ext.  Anthemidis  fl.,  ext.  Asari  fl.,  ext.  Au- 
rantii  Dulcis  Corticis  fl.,  ext.  Erigerontis  Canadensis  fl.,  ext.  Helian- 
themi  fl.,  ext.  Juniperi  fl.,  ext.  Lapp^e  fl.,  ext.  Spigelise  et  Sennse  fl., 
ext.  Sumbul  fl.,  and  ext.  Thnjse  fl. 
The  eleven  added  are:  Ext.  Aromaticum  fl.,  ext.  Capsici  fl.,  ext. 
Cypripedii  fl.,  ext.  Haniamelidis  fl.,  ext.  Iridis  fl.,  ext.  Lactucarii  fl., 
ext.  Nucis  Vomicae  fl.,  ext.  Qnassise  fl.,  ext.  Rosse  fl.,  ext.  Stramonii  fl., 
ext.  Vibnrni  fl. 
It  may  be  said  of  several  of  these  eleven,  that  they  are  of  no  more 
value  than  some  of  the  ten  which  were  stricken  ofl* ;  it  is  particularly 
unfortunate  that  fluid  extract  of  spigelia  and  senna  was  dropped  from 
the  list,  as  it  is  much  used,  and  an  excellent  formula  was  given  for 
its  preparation  ;  a  satisfactory  preparation  cannot  be  made  by  mixing 
the  respective  fluid  extracts,  even  if  both  have  been  prepared  with  the 
same  strength  of  menstruum. 
In  tTie  i)i'eparation  of  the  fluid  extracts,  the  mode  of  procedure 
recommended  by  the  Philadelphia  College  of  Pharmacy  has  been 
generally  adopted,  with  some  unimportant  changes. 
The  method  briefly  is  as  follows :  One  hundred  grammes  of  the 
powdered  drug  are  moistened  with  a  specified  quantity  of  the  men- 
struum, usually  about  thirty-five  grammes,  the  moistened  powder  is 
then  packed  in  a  cylindrical  percolator,  and  enough  of  the  menstruum 
added  to  saturate  it  and  leave  a  stratum  above ;  when  the  percolate  is 
about  to  drop,  the  lower  orifice  is  closed,  the  percolator  closely  covered, 
and  the  contents  allowed  to  macerate  for  forty-eight  hours.  The  per- 
colation is  then  allowed  to  proceed,  gradually  adding  more  menstruum, 
until  the  drug  is  exhausted*  A  specified  quantity  of  the  first  percolate, 
usually  about  eighty  cubic  centimeters,  is  reserved,  and  the  remainder 
evaporated  to  a  soft  extract ;  this  is  to  be  dissolved  in  the  reserved 
portion,  and  enough  of  the  original  menstruum  added  to  make  the 
fluid  extract  measure  one  hundred  cubic  centimeters. 
The  direction  to  dissolve  the  soft  extract  in  the  reserved  percolate  is 
an  important  improvement,  as  it  will  in  most  cases  be  found  to  dissolve 
much  more  completely  in  this  than  it  will  in  the  menstruum  with 
which  the  drug  was  exhausted. 
The  table  furnishes  the  following  information :  As  to  fineness  of 
powders,  in  twenty-four  cases  the  Committee  agrees  with  the  Phila- 
delphia College,  in  twenty-three  cases  finer  powder  is  directed,  and  in 
nineteen  cases  coarser. 
