-Am  Jour  pi.arm. )  Ce/tistrus  Scaudeiu.  3 
solved  by  benzol  was  dried  ai^V  completely  exiiausted  by  <S0  per  cent 
alcohol;  the  extract  thus  (  jiained,  after  evaporation,  was  of  a  soft 
consistence  and  of  a  dark  brownish-yellow  color,  and  of  a  sweet  nau- 
seous taste. 
A.  Absolute  alcohol  took  up  the  greater  portion  of  the  alcoholic 
extract. 
a.  Soluble  in  Water. — The  absolute  alcohol  extract  wat  then  treated 
^vith  distilled  water  which  took  up  a  portion.  The  solution  was  of  a 
light  brown  color  and  reduced  Fehling's  solution  ;  presence  of  glucose. 
Solution  of  gelatin  was  not  precipitated  and  no  change  with  iron  solu,-. 
tion  ;  absence  of  tannin.  Subacetate  of  lead  gave  a  precipitate^  the 
filtrate  containing  glucose. 
h.  Insoluble  hi  Water. — Soluble  in  Dilute  Hydrochloric  Acid. — 
The  absolute  alcoholic  extract  which  was  insoluble  in  water  was  treated 
with  very  dilute  hydrochloric  acid  ;  the  resulting  solution  gave  a  slight 
yellow  precipitate  with  Mayer's  aolution  and,  upon  evaporation,  left  a 
slight  residue. 
b^.  Soluble  in  Dilute  Ammonic  Hydrate. — Amnionic  hydrate  dis- 
solved the  entire  amount  of  extract  not  soluble  in  HCl,  and  it  was 
again  precipitated  by  an  acid  ;  acid  resin. 
B.  Insoluble  in  Absolute  Alcohol. 
c.  Soluble  in  Water,  c^.  Precipitated  by  Subacetate  of  Lead. — That 
portion  of  80  per  cent,  alcoholic  extract  which  was  not  dissolved  by 
absolute  al(;ohol  was  treated  with  distilled  water  and  the  resulting 
solution  precipitated  with  subacetate  of  lead;  the  precipitate  collected, 
washed  and  freed  from  lead  gave,  upon  evaporation,  a  l^rown  residue. 
c^.  Not  Precipitated  by  Subacetate  of  Lead. — The  fi-ltrate  from  was 
freed  from  lead.  lodohydi'argyrate  of  potassium  gave  a  yellowish 
precipitate;  iodine  and  iodide  of  })otassium  solution,  a  brown  precipi- 
tate; |)hospliomolybdic  acid,  a  greenish- white  precipitate,  and  the  same 
reagent  added  to  an  alkaline  solution,  a  blue  evanescent  coloration. 
Fehling's  solution  gave  a  copious  precij)itate. 
d.  Insoluble  in  Water. — d^.  Soluble  in  Dilute  Ili/drochloric  Acid. — 
The  solution  gave  reaction  for  glucose. 
d^.  The  portion  insoluble  \n  dihite  hydrochloric  acid  was  soluble  in 
ammonic  hydrate  and  reprccipitated  by  an  acid. 
VT.  Cor.i)  Watei{  Extiiact.— The  powder  exhausted  by  80  ])er 
cent,  alcohol  was  next  treated  with  cold  water,  the  infusion  concentra- 
ted and  tiie  gum  precipitated  with  stronger  alcohol.    This  was  of  a 
