'^°^  \ug'^'i888^'°^*}     Gleanings  from  the  German  Journals.  401 
chlorine  after  some  time,  regardless  of  the  precautions  taken  to  preserve 
it.  The  hypochlorite  gradually  forms  chloride  and  chlorate  of  cal- 
cium.— Rundschau,  1888,  452. 
AntineuralgiG  Ointment. — Menthol  75,  cocaine  25,  chloralhydrate 
15,  petrolatum  500. — Rundschau,  1888,  453. 
Sulpho-benzoate  of  Sodium  is  made  by  Meckel,  by  dissolving  benzoic 
acid  in  a  concentrated  solution  of  sodium  sulphite  (molecular  ratio  122- 
252.  It  is  easily  soluble  in  water,  is  used  as  an  antiseptic  dressing  for 
wounds  in  the  strength  of  4  to  5  gm.  in  litre,  is  more  active  than 
phenol  and  belongs  in  the  same  class  as  mercuric  chloride  and  iodo- 
form without  the  objectionable  properties  of  these.  (See  also  Am. 
JouE.  Phaem.,  March,  1888,  p.  136.) 
Conversion  of  Camphor  into  Borneol  and  of  Menthon  into  Menthol. 
The  process  patented  in  Germany  by  E.  Beckmann,  consists  in  dissolving 
camphor  (or  menthon  or  oil  of  peppermint),  in  a  solvent  indifferent  to 
metallic  sodium,  with  which  the  solution  is  repeatedly  treated.  The 
following  expresses  the  change  with  camphor : 
2CioH,eO+Na2   =    QoHi,ONa    +  Q,Jl,,Om. 
Camphor.       Camphor  Sodium.    Borneol  Sodium. 
These  compounds  are  decomposed  by  water  and  the  mixture  of  cam- 
phor and  borneol  again  treated  with  Na,  until  the  camphor  is  com- 
pletely changed  into  Borneol. —  Chemiker  Ztg.,  1888,  566.  Berichte, 
Ref,  321. 
Oil  of  Eucalyptus  globulus. — R.  Voiry  found  the  oil  to  yield  :  1, 
an  aqueous  distillate  containing  formic  and  chiefly  acetic  acids;  2, 
butyr-  and  valer -aldehydes  ;  3,  a  dextrogyre  terpene  boiling  at  158  to 
to  160°  C,  sp.  gr.  0*88  at  0°  C. ;  yielding  a  monochlorhydrate 
CioHi^Cl  melting  at  126^-128°  C. ;  4,  eucalyptol  (in  the  fractions 
between  170°~175°  C.  representing  two-thirds  of  the  oil) ;  by  cooling 
distillate  by  ice  and  salt  and  allowing  crystals  to  drain  and  repeating 
the  crystallization  in  the  same  manner  several  times,  eucalyptol  was 
obtained  perfectly  pure,  as  a  mobile  liquid,  crystallizing  at  0°  C, 
melting  at  1°  C. ;  density  at  0°  C,  0*940;  odor  resembling  mint 
and  camphor ;  formula,  CioH^gO ;  optically  inactive  and  yielding 
2  CioHigO.  HCl  with  dry  HCl  at  low  temperature. 
By  distillation  under  reduced  pressure  (0'04  m.)  a  terpilenol  was 
obtained  at  130°-135°  C. ;  this  forms  a  dichlorhydrate  C10H152HCI. 
At  140°-145°  C,  the  esters  of  acetic,  butyric  and  valerianic  acids  of 
this  terpilenol  were  gotten.    Other  distillation  products  were  poly- 
