498  Abstracts  from  the  French  Journals,  {Km'l°™;S:xux' 
on  a  water  bath  and  heated  until  the  gauze  and  the  alcohol  are 
entirely  decolorized.  The  alcoholic  liquids  are  united  and  diluted 
with  water  to  250  cc,  filtered,  and  10  cc.  of  the  product  are  neutral- 
ized with  acetic  acid  and  estimated  with  normal  silver  nitrate  solu- 
tion. The  process  can  also  be  applied  to  the  direct  estimation  of 
iodoform. 
Scilla  maritima. — In  extracting  the  principle,  which  S.  Wani- 
zewski  names  scillinine,  of  the  composition  C12H10O10,  which  Riche 
Remont  called  scilline  (see  Amer.  Jour.  Pharm.,  1880,  p.  550),  the 
author  obtained  a  principle  of  complex  composition,  which  he  puri- 
fied by  washing  first  with  water  then  with  chloroform.  In  each  of 
these  liquids  he  found  a  new  body  soluble  in  alcohol  like  scillinine ; 
the  principle  soluble  in  water  he  named  scillapicrine,  that  extracted 
from  the  chloroform  washing  scillamarine.  He  mentions  also  the 
existence  of  a  fourth  principle,  which  is  insoluble  in  alcohol  and  in 
dilute  alcohol,  very  soluble  in  water,  very  bitter  and  difficultly  isola- 
ted.— V  Union  pharm.;  Jour,  de  pharm.  d'Anvers,  July,  1893,  p.  252. 
Helianthenin  is  the  name  applied  by  Ch.  Tanret  to  a  new  principle 
which  he  isolated  from  Jerusalem  artichoke  (Helianthus  tuberosus). 
It  crystallizes  in  fine  microscopic  needles,  is  soluble  in  its  own  weight 
of  cold  water,  very  soluble  in  dilute  alcohol ;  but  the  solubility 
decreases  rapidly  with  increase  of  the  alcoholic  titre ;  fuses  at  1760; 
its  aqueous  solution  shows  the  rotation  «D  =  —  23'5°>  an<^  the  for- 
mula is  12  (C12H10O10).3  H202.  Helianthemin  does  not  reduce  Feh- 
ling's  solution  and  is  not  precipitated  from  its  aqueous  solution  either 
by  baryta  or  by  subacetate  of  lead. 
Synanthrin,  which  was  also  separated  from  Jerusalem  artichoke, 
is  a  white  amorphous,  nearly  insipid  substance.  It  is  soluble  in  all 
proportions  of  water  and  dilute  alcohol,  less  soluble  in  concentrated 
alcohol.  It  fuses  at  1700,  and  shows  the  rotation  aD  =  —  17°  J  its 
composition  corresponds  to  the  formula  8  (C12H10O10)  H202.  It  does 
not  reduce  Fehling's  solution,  and  has  the  peculiar  property  of  pre- 
venting the  formation  of  saccharate  of  baryta  from  cane-sugar  and 
boiling  baryta,  unless  the  proportion  of  sugar  present  is  greater 
than  1 -5  to  1  part  of  synanthrin. — Jour.de  pharm.  et  de  chim.,  August, 
1893,  p.  107. 
Asaprol,  a  soluble  derivative  of  /9-naphthol  has  been  reported  upon 
by  Dujardin-Beaumetz  and  Stackler  (Bull.  gen.  de  ther.,  July  30  and 
