Am.  Jour.  Phi>rm. ) 
Oct.,  1877.  J 
Solanum  Paniculatum. 
The  filtrate  of  the  precipitate  with  ammonia  was  then  evaporated  to 
a  small  bulk,  and  extracted  with  distilled  water  acidulated  with  acetic 
acid  ;  the  filtered  solution  was  evaporated  to  a  soft  extract,  treated  with 
sodium  bicarbonate  in  excess,  and  shaken  with  ether.  The  etherial 
solution  was  neutral  to  test  paper.  On  evaporating  the  ether,  there 
remained  a  semi-transparent  viscid  mass,  with  a  bitter  taste  and  slightly- 
aromatic  odor,  sparingly  soluble  in  water,  but  readily  soluble  in  am- 
monia, alcohol  and  chloroform.  Sulphuric  acid  added  to  a  small  por- 
tion produced  a  dark-red  color,  nitric  acid  gave  merely  a  darker  shade 
of  yellow.  On  adding  very  dilute  hydrochloric  acid  to  the  mass,it 
dissolved,  with  the  exception  of  a  small  quantity  of  a  dark  resinous 
substance.  The  filtered  solution  gave  the  following  indications  of  the 
presence  of  an  alkaloid  :  With  phosphomolybdic  acid  it  produced  a  yel- 
low precipitate,  which  was  dissolved  by  ammonia,  giving  a  blue  solution 
that  became  colorless  on  boiling  ;  with  sodium  phospho-tungstate  it 
gave  a  white  flocculent  precipitate ;  potassio-cadmic  iodide  also  threw 
down  a  white  precipitate  (distinction  not  only  from  soiania,  but  from 
glucosides  and  neutral  substances  in  general);  potassio- mercuric  iodide 
formed  with  it  a  yellowish-white  precipitate,  soluble  in  acetic  acid  and 
in  excess  of  the  precipitant  ;  with  iodine  in  iodide  of  potassium  solution 
it  gave  a  yellow  precipitate,  and  with  tincture  of  galls  a  white  precipitate, 
soluble  in  acetic  acid,  insoluble  in  ammonia.  A  yellow  precipitate  was  also 
afforded  by  auric,  but  none  by  platinic  chloride.  Nitrate  of  silver  and 
potassio-cupric  sulphate  gave  white  precipitates,  which  were  not  reduced 
by  heating.  Mercuric  chloride  and  perchloride  of  iron  threw  down 
white  precipitates.  Picric  and  chromic  acids  did  not  yield  precipitates* 
The  remainder  of  the  solution  evaporated  over  sulphuric  acid  left  a 
slightly  yellow  semi-transparent  mass,  containing  numerous  stellate 
groups  of  acicular  crystals,  which,  dissolved  in  distilled  water  and 
separated  from  a  small  quantity  of  insoluble  dark  resinous  matter, 
recrystallized  of  a  somewhat  lighter  color. 
The  preparations  of  the  berries  were  then  examined  to  ascertain 
whether  they  contained  a  substance  giving  the  same  reactions.  The 
wine  (about  four  fluidounces)  was  evaporated  to  a  soft  extract,  which 
was  extracted  with  distilled  water  acidulated  with  acetic  acid,  and  the 
filtered  solution  reduced  to  a  small  bulk,  treated  with  sodium  bicarbonate 
in  excess,  and  extracted  with  chloroform.  The  plaster,  which  was 
evidently  composed  of  an  extract  of  jurubeba  and  lead  plaster,  was 
