AmVJe0bu:'ir7h7arin'}  Gleanings  from  the  Foreign  Journals.  69 
lakes.  When  heated  with  anilin  a  red  color  is  produced.  It  dyes 
silk  and  wool. 
Thymol  and  pyrogallic  acid  yield  coloring  matters  like  phenol. — 
C.  Reichl  in  Ber.  deutsch.  Chem.  Ges.,  1 876,  p.  1429. 
The  secretion  of  salicylic  acid  is  effected,  according  to  one 
view,  by  combination  with  the  salts  of  blood  in  the  form  of  salicylates. 
Freser  and  Friedberger  assume  a  combination  with  the  albuminates  of 
the  blood,  which,  shortly  before  the  excretion,  is  converted  into  salicy- 
lates. Binz  believes  in  the  first  theory,  and  regards  the  salicylates  of 
the  blood  as  being  decomposed  by  the  carbonic  acid  generated  in  the 
tissues. 
R.  Fleischer  regards  the  first  view  as  the  most  correct  one.  Pure 
sodium  salicylate  is  insoluble  in  ether,  but  on  evaporation  of  the  ether, 
after  shaking  it  with  a  solution  of  the  salt,  reactions  for  salicylic  acid 
may  be  obtained,  though  no  residue  is  observed.  This  is  due  to  the 
presence  in  the  ether  of  minute  traces  of  acetic  acid.  Neither  carbonic 
nor  acetic  acid  liberate  salicylic  acid  from  solutions  of  its  salts,  except 
in  the  presence  of  ether  ;  on  the  contrary,  salicylic  acid  liberates 
acetic  acid  from  its  salts,  and,  in  contact  with  the  so-called  neutral 
sodium  phosphate,  forms  salicylate  and  acid  phosphate  of  sodium  ; 
however,  on  concentrating  the  solution  containing  these  two  salts,  the 
neutral  phosphate  and  free  salicylic  acid  are  again  produced. — Chem. 
Centralbl.,  1876,  No.  45. 
Artificial  oil  of  bitter  almonds,  prepared  from  toluol,  by  Wil- 
helmi,  of  Leipzig,  has  been  examined,  by  E.  Lippmann  and  Jos. 
Hawliczek,  and  compared  with  true  oil  of  bitter  almonds,  which  had 
been  freed  from  hydrocyanic  acid  by  distillation  with  milk  of  lime  and 
ferrous  sulphate  ;  the  artificial  and  natural  oil  were  found  to  be  identi- 
cal, chemically  as  well  as  physically.  They  boiled  between  178  and 
1800  C  (352*4  and  3560  F.)  ;  the  benzyliden  chloride,  prepared  from 
both,  had  the  same  boiling  point  (203-204°C.)  and  the  same  elementary 
composition  (C7H6C12)  ;  the  benzoic  acid  prepared  from  both,  by  three 
different  processes,  had  the  fusing  point  (121 0  C.)  and  other  properties 
of  ordinary  benzoic  acid,  and  various  ethers  obtained  from  the  two 
were  identical.  The  specific  gravity  of  the  artificial  oil  at  0°  C.  was 
found  to  be  1*067,  which  agrees  with  the  density  (1*063)  °^  tne 
benzaldehyd  from  the  natural  oil,  determined  by  H.  Kopp. — Ber. 
■deutsch.  Chem.  Ges.,  1876,  p.  1461-1463. 
