NEW  PROCESS  FOR  MAKING  FLUID  EXTRACTS. 
Buchu  and  of  Sassafras  Bark, — they  will  be  found  to  be  very 
much  superior  to  those  made  by  any  other  process ;  having 
all  their  aroma  and  fragrancy,  and  in  fact  having  a  freshness  that 
cannot  possibly  be  obtained  in  any  other  way.  The  almost 
entire  tastelessness  of  the  refuse  of  powerful  substances,  such 
as  Jamaica  Ginger,  after  being  submitted  to  this  process,  is 
considered  satisfactory  proof  of  the  capabilities  of  the  process. 
The  novelty  and  consequent  patentability  of  this  process  was 
shown  by  the  prompt  allowing  of  the  Patent,  as  soon  as  it  was 
presented  to  the  Patent  Office.  Annexed  is  a  copy  of  the 
Patent.  From  close  observation  of  the  workings  of  this  process, 
it  is  believed  that  the  great  pressure  used  has  effects  that  would 
not  at  first  be  supposed.  The  small  amount  of  liquid  is,  of  course, 
at  first  application,  perfectly  saturated  with  soluble  substance,  if 
there  be  enough  to  saturate  it ;  then  the  pressure  has  the  effect  of 
pushing  the  liquid  from  the  centre  of  the  mass  past  the  other  par- 
ticles, or  through  them  giving  greater  chance  for  solution.  The 
liquid  obtained  by  first  pressing  is  very  strong,  becoming  weaker 
at  each  succeeding  pressing,  until  exhaustion  is  complete  or 
nearly  perfect.  By  noting  the  amount  of  liquid  put  on  and 
taken  off  at  each  pressing,  if  the  solvent  is  the  proper  one,  the 
amount  of  valuable  substance  remaining,  though  very  small,  can 
be  ascertained  with  mathematical  certainty.  For  instance,  if  a  lot 
has  six  pressings,  taking  out  two-thirds  of  the  strength  in  it  at 
commencement  of  each  pressing,  the  sixth  pressing  will  leave 
in  fourteen  one-hundredths  of  one  per  cent,  of'  substance  in  it  at 
the  commencement  of  the  operation,  soluble  in  the  liquid  used.  If 
same  number  of  pressings  are  given,  each  taking  out  one-half,  the 
last  pressing  will  leave  in  one  and  nine-sixteenths  of  one  per  cent,  of 
original  amount  of  substance  soluble  in  the  liquid  used.  Persons 
wishing  to  avail  themselves  of  the  use  of  this  Patent,  on  liberal 
terms,  will  please  address  the  Patentee. 
N.  Spencer  Thomas, 
Painted-Post,  Steuben  County,  N.  Y. 
These  Extracts  (as  well  as  the  Mills)  are  now  made  and  sold  by 
Mr.  Charles  T.  Iredell,  Bristol,  Bucks  County,  Pa.,  twenty  miles 
from  Philadelphia. 
