200       Recent  Literature  Relating  to  Pharmacy.  {Am'^p"if'wSiarm' 
gation  has  established  the  presence  of  the  following  new  constituents 
in  German  rose  oil :  normal  nonylic  aldehyde,  citral,  /-linalool,  nor- 
mal phenyl-ethyl  alcohol  and  /-citronellol.  It  should  be  noted  also 
that  there  were  indications  of  other  constituents  in  this  oil.  The 
pertinent  observation  is  made  that  an  explanation  is  lacking  for  the 
presence  of  only  a  trace  of  the  phenyl-ethyl  alcohol  in  ordinary 
rose  oils  and  the  large  quantities  of  the  same  alcohol  in  extracted 
oils.  L.  F.  K. 
PREPARATION  OF  TERPIN  HYDRATE. 
Keutmann  [Pharm.  Ztg.,  43,  296)  finds  that  on  mixing  one  part 
of  hydrogen  peroxide  (per  cent.  ?),  two  parts  of  nitric  acid  and 
eight  parts  of  oil  of  turpentine,  then  allowing  the  mixture  to  stand 
a  few  hours,  a  copious  crop  of  terpin  hydrate  crystals  will  be 
formed.  L.  F.  K. 
THE  PREPARATION  OF  AN  EXACT  STANDARD  ACID. 
C.  Longuet  Higgins  (Joum.  Soc.  Client.  Ind.,  19,  958)  reviews 
the  subject  in  a  very  satisfactory  manner,  and  the  reader  is  referred 
to  the  original  communication  for  details.  The  method  worked  out 
by  this  author  is  similar  to  the  one  first  presented  by  Mr.  G.  T. 
Moody,  1898,  Jour.  CJiem.  Soc,  73,  658,  and  consists  in  dissolving  a 
given  weight  of  pure  dry  hydrochloric  acid  in  a  definite  weight  of 
water.  L.  F.  K. 
CONSTITUENTS  OF  WEST  INDIAN  SANDALWOOD  OIL. 
Hugo  von  Soden  and  Wilhelm  Rojahn  (Chem.  Centr.,  1900, 1274; 
Pharm.  Zeit.y  1900,  p.  878)  separate  amyroi  into  components.  Of 
these  the  alcohol  C15H25OH  is  present  in  larger  proportion,  possesses 
boiling  point,  2990  ;  specific  gravity,  0-987  at  150,  and  a  rotation  of 
-f-  360.  The  second  alcohol  appears  to  have  the  composition 
C15H23.OH  and  to  be  optically  inactive. 
From  West  Indian  sandalwood  oil,  01  per  cent,  of  amyrolin, 
C14H1203,  has  been  isolated;  it  crystallizes  from  methyl  alcohol  in 
stout  crystals,  is  colorless,  odorless  and  tasteless;  melts  at  11 7°; 
dissolves  in  hot  alcohol,  giving  the  solution  a  blue  fluorescence  and 
in  alcoholic  potash  solutions  with  a  yellowish-green  fluorescence. 
Amyrolin  appears  to  be  an  aromatic  compound  of  the  character  of 
a  lactone. 
