602  Gleanings  from  the  German  Journals.  {  A%Je0cu,ri|)i arm* 
will  assume  an  intense  yellow  color  due  to  the  formation  of  a  nitro- 
phenacetine ;  acetanilide  and  antipyrine  under  the  same  treatment 
are  not  altered. — W.  Autenrieth  and  O.  Hinsberg,  Arch,  der  Pharm., 
1891,  456. 
Detection  of  oil  of  geranium  in  oil  of  rose. — 1.  If  two  or  three  drops 
of  oil  of  geranium  be  agitated  in  the  cold  with  two  cubic  centime- 
ters of  a  fuchsin  solution  decolorized  by  addition  of  sulphurous  acid 
there  will  be  obtained  at  first  a  bluish  violet,  after  two  hours  a 
beautiful  blue  coloration.  Oil  of  rose  by  the  same  test  after  24 
hours'  standing  shows  a  red  coloration.  With  mixtures  of  the  two 
oils  there  is  no  difficulty  in  recognizing  the  blue  color  due  to  oil  of 
geranium  since  this  reaction  is  produced  before  the  color  reaction 
due  to  the  oil  of  rose. 
2.  If  equal  quantities  of  oil  of  geranium  and -concentrated  sul- 
phuric acid  be  mixed  in  a  watch-crystal  heat  is  developed  with  for- 
mation of  dense,  white  fumes  of  a  disagreeable  tarry  odor ;  a  brown- 
red  viscid  liquid  remains  which  on  addition  of  95  per  cent,  alcohol 
becomes  turbid  and  separates  yellow,  fatty  flakes,  the  solution  at 
first  being  red  but  passing  into  a  yellow  after  standing.  With  oil 
of  rose  the  test  also  forms  a  brown-red  viscid  mass  which,  however, 
dissolves  completely  in  alcohol  forming  an  almost  colorless  solution. 
— G.  Panajotow  (Ber.  d.  D.  Chem.  Ges.)  Pharm.  Ztg.,  1891,685. 
Alkaloids  of  the  Solanacece. — A  careful  investigation  of  the 
important  plants  of  this  natural  order,  with  the  view  of  ascertaining 
which  of  the  alkaloids  existed  pre-formed  in  them,  is  summarized 
as  follows : 
Belladonna  root:  Young,  uncultivated  roots  contain  only  hyoscya- 
mine  ;  older,  uncultivated  roots  contain  atropine  in  minute  quantity 
with  the  hyoscyamine;  the  same  alkaloids  were  found  in  older  culti- 
vated roots.  Belladonna  berries  :  The  ripe,  cultivated  Atropa  Bella- 
donna nigra  contain  both  alkaloids,  the  uncultivated  only  atropine  ; 
the  unripe,  uncultivated  berries  contain  chiefly  hyoscyamine,  with 
very  little  atropine  ;  the  ripe  berries  of  Atropa  Belladonna  lutea 
contain  atropine  with  another  alkaloid  probably  identical  with 
atropamine.  Belladonna  leaves :  Both  species  contain  both  alka- 
loids, hyoscyamine  and  atropine,  the  latter  in  minute  quantity  only. 
Stramonium  seed:  Fresh  and  old  seeds  contain  chiefly  hyoscya- 
mine, with  small  quantities  of  atropine  and  skopolamine.  Solanum 
tuberosum  contains  a  mydriatic  alkaloid  along  with  betame.  Lycium 
