86 
Analysis  of  Fouquiena  Splendens. 
Am.  Jour.  Pharm. 
Feb.,  1885. 
and  lead  salts.  It  reduced  Fehling's  solution  on  adding  dilute  acid 
and  warming.  Negative  results  followed  tests  for  alkaloids.  Treating^ 
with  two  volumes  of  absolute  alcohol,  according  to  Dragendorff  for 
detection  of  gum,  vegetable  mucilage  was  separated.  Tests  failed  to- 
detect  the  presence  of  tannin. 
The  residue  of  the  powdered  bark,  after  exhaustion  with  absolute 
alcohol,  was  treated  with  cold  water.  A  deep  red  mucilaginous  liquid 
which  became  frothy  on  shaking,  was  extracted.  The  amount  of  solids- 
in  this  solution,  on  evaporating  the  liquid  and  weighing  the  residue 
was  found  to  be  19*11  per  cent.;  in  absence  of  acid  or  boiling  glucose 
was  identified  by  Fehling's  solution,  also  by  Mulder's  test.  A  gum 
separated  by  absolute  alcohol  and  quantitatively  estimated,  show^ed 
4*8  per  cent,  of  the  amount  of  substances  dissolved  in  water.  The 
powdered  residue,  after  treatment  with  water,  was  macerated  with 
dilute  acid,  and  gave  negative  tests  for  alkaloids.  The  extraction  with 
caustic  soda  for  identification  of  albuminous  substances,  followed  by 
chlorine  water  for  the  estimation  of  lignin  and  cellulose,  have  not  yet 
been  determined. 
The  results  of  the  proximate  analysis,  as  so  far  completed,  may  be 
stated  as  follows: 
Moisture   9  4 
Petroleum  spirit  residue  ,  9* 
Ethereal  residue   4*52 
Alcoholic  residue   8*6 
Water  residue  19*11 
Total  ash  10*26 
Alcoholic  extract  ash  00*15 
61*04 
The  difference  of  38*96  per  cent,  would  include  pectose,  coloring 
matter  and  cellulose  or  woody  fibre. 
Petroleum  spirit  extracted  a  solid  substance,  yellowish  green  in  color 
of  sp.  gravity  .984,  melting  from  84°  C.  to  85°  C,  insoluble  in  water 
slightly  soluble  in  boiling  95  per  cent,  alcohol,  soluble  in  absolute 
alcohol,  cold  ether,  chloroform,  amyl  alcohol,  benzol,  carbon  disul- 
phide,  oil  of  turpentine  and  linseed  oil.  It  was  slightly  acted  upon  by 
aqueous  alkalies ;  but  readily  saponified  with  alcoholic  soda.  Treat- 
ing the  soap  with  lead  acetate  and  boiling  the  precipitate  with  ether,  a 
yellow  crystalline  substance  was  obtained,  melting  from  43°  C.  to 
60°  C.    Sulphuric  acid  combined  with  solvents  gave  characteristic 
