374  Gleanings  from  the  German  Journals.  { Am'juiy^'i892?rm' 
mate,  C17H21N04HBr-f  3H20;  hydrochlorate,  C17H21N0,HC1  +  2H20; 
hydriodate,  C17H21N04HI ;  with  gold  chloride  it  forms  an  anhydrous 
double  salt,  C17H21N04HCl-f-AnCl3,  melting  at  212-2140  C.  (not 
corrected).  Scopolamine  is  a  tertiary  base  and  is  decomposed  by 
baryta  into  scopoline  (C8H13N02)  and  atropic  acid  (C9Hs02).  Scopo- 
line  distils  at  241-2430  C.  without  decomposition  and  solidifies  to  a 
crystalline  mass  which,  recrystallized  from  ligroin,  forms  colorless 
needles  melting  at  no°  C. — Archiv  der  Pharm.,  1892,  206-232.' 
Examination  of  oleic  acid. — The  purity  of  the  commercial  acid  is 
ascertained  by  Dr.  Hager  by  (1)  the  specific  gravity  0-895-0-915  ; 
(2)  solubility  in  80  per  cent,  alcohol  and  (3)  perfect  solubility  in 
benzin  (presence  of  water  and  alcohol  causing  a  turbidity).  The 
second  test  is  for  the  detection  of  hydrocarbons.  Th.  Salzer  states 
,  in  this  test  while  the  hydrocarbons  themselves  are  not  soluble  in  85 
per  cent,  alcohol  considerable  quantities  will  dissolve  in  the  presence 
of  oleic  acid;  he  has  found  an  addition  of  25  per  cent,  rosin  oil  to 
oleic  acid  to  answer  the  above  requirements  and  therefore  advises 
the  use  of  a  more  dilute  alcohol  sp.  gr.  0  860.  In  adding  to  5  cc. 
alcohol  of  this  specific  gravity,  there  is  produced  a  permanent  tur- 
bidity on  addition  of  6  cc.  pure  olein,  5  cc.  olein  containing  5  per  cent, 
rosin,  4  cc.  olein  with  10  per  cent.,  3  cc.  olein  with  20  per  cent,  rosin 
oil.  There  is  produced  a  turbidity  on  adding  a  small  quantity  of 
these  adulterated  oleins  to  5  cc.  of  the  alcohol,  but  this  disappears 
upon  adding  more. — Pharm.  Centralhalle,  1892,  290. 
Oxy chinas eptol  or  diaphtherin,  a  new  autiseptic  in  which  combina- 
tion is  effected  between  one  molecule  ortho-phenol-sulphonic  acid 
(sulpho-carbolic  acid,  aseptol)  and  two  molecules  oxychinoline.  It 
is  stated  to  have  the  formula  : 
OH  NC9  H6  OH 
C6  H4  S02  OH  NC9  H6  OH 
and  forms  a  yellow  powder,  easily  soluble  in  water ;  dilute  alkalies 
and  blood  cause  a  separation  oxychinoline  to  which  is  due  its  anti- 
septic value.  It  is  used  in  one  per  cent-  solution  ;  and  is  admitted 
to  have  one  disadvantage,  namely,  causing  a  dark  precipitate  (resem- 
bling tannate  of  iron)  when  brought  in  contact  with  iron  instruments 
which  are  not  evenly  nickel-plated,  some  other  metals  react  in  the 
same  way  ;  these  colorations  are  objectionable  if  any  stitching  has 
