ArM:£ch,  fs94.rm  }  Gleanings  from  the  German  Journals.  143 
The  usual  statement  that  carminic  acid  is  a  glucoside  decomposing 
into  glucose  and  carmine-red  is  proven  to  be  a  false  one,  and  the 
identity  of  carmine-red  and  carminic  acid  is  announced ;  after  boil- 
ing carminic  acid  with  dilute  sulphuric  acid  for  some  hours, 
unchanged  carminic  acid  and  a  strong  reducing  substance  of  unknown 
composition  can  be  separated,  the  latter  no  doubt  has  been  looked 
upon  as  a  sugar ;  formic  acid  was  also  produced  in  this  decompo- 
sition.— (Berichte)  Apotheker  Ztg.,  1893,  638. 
Bulgarian  rose  oil. — The  chief  constituent  of  the  elaeopten  is 
roseol,  a  primary  alcohol  of  the  formula  C10H20O  belonging  to  the 
olefine  series ;  its  acetate  C10H19C2H3O2  is  a  colorless  liquid  of  a  dif- 
ferent and  more  agreeable  odor  than  that  of  oil  of  rose.  The  stearopten 
which,  after  purification,  forms  odorless,  white  crystallized  plates, 
has  the  formula  C16H34,  melts  at  36-5-38°  C,  congeals  at  34°  and 
boils  at  350-380°  C. — W.  Markownikoff  and  A.  Reformatsky 
(Journ.  f.  prakt.  Chem.)  Apotheker  Ztg.,  1893,  638. 
Cane  sugar  was  identified  as  one  of  the  constituents  of  the  root 
of  Scopoliae  corniolica ;  the  melting  point  of  the  crystals  1830  C. 
differing  from  the  melting  point  of  the  cane  sugar  as  usually 
accepted  (160°)  led  to  an  examination  of  the  literature  on  the  subject : 
Berzelius  states  160°  C,  Peligot  180°  C.  and  E.  Merck  1630  to  1640 
(from  ipecacuanha).  A  determination  of  the  melting  point  of  pure 
cane  sugar  recrystallized  from  alcohol,  gave  by  the  same  method  of 
determination  1830  C. — Prof.  E.  Schmidt,  Apotheker  Ztg.,  1894,  6. 
White  ipecac  has  been  found  by  A.  Andree  in  a  recent  shipment 
of  senega ;  the  former  drug  containing  emetine,  attention  is  directed 
to  this,  no  doubt  accidental,  admixture.  The  sample  itself,  probably, 
was  obtained  from  a  polygala  variety  growing  in  a  section  of  the 
country  along  with  white  ipecac ;  the  senega,  which  did  not  uni- 
formly show  the  characteristic  keel,  had  long,  bright  violet- colored 
stem  remnants  attached. — Apotheker  Ztg.,  1894,  23. 
The  manufacture  of  salol  by  a  recent  German  patent  depends  upon 
the  formation  of  salicylide  (C7H402)4and  polysalicylide  (C7H402)n  by 
the  action  of  phosphorus  oxychloride  upon  solutions  of  salicylic 
acid  in  indifferent  solvents  like  toluol,  etc.;  polysalicylide  and 
phenol  heated  to  a  temperature  of  210-220°  C.  (best  under  pressure) 
react  together  forming  salol,  which  is  afterwards  separated  by  frac- 
tional distillation  and  purified  by  recrystallization. — Apotheker  Ztg., 
1894,  40. 
