484  Gleanings  f  rom  the  European  Journals.  { 
Alcohol,         .  .  .  .  1  fl.  oz. 
Oil  Orange,  .  .  .  .12  minims. 
Sugar,  .  .  .  2  ozs. 
4  Solution  Tersulphate  of  Iron,  .  2  f .  ozs. 
Water  of  Ammonia,    .  .  .  q.  s. 
Dissolve  the  oil  of  orange  in  the  alcohol,  and  mix  with  the  sherry 
wine  and  brandy.  With  this  menstruum  percolate  the  ground  drugs, 
recovering  15  f.  ozs.  tincture  by  pouring  on  water.  Dilute  the  iron 
solution  with  twice  its  bulk  of  water,  and  add  ammonia  until  in  slight 
excess.  Wash  the  precipitate  until  the  washings  are  tasteless,  and 
drain  thoroughly.  Mix  this  precipitate  with  the  percolated  tincture, 
and  allow  to  stand,  shaking  frequently,  until  a  portion  filtered  off  has 
a  light  yellow  color  and  does  not  blacken  with  tincture  of  chloride  of 
iron.  Then  filter,  dissolve  the  citrate  of  iron  and  the  sugar,  and  bring 
up  the  measure  with  a  little  water  to  16  f.  ozs. 
Each  fluidounce  contains  12  grs.  cinchona  calisaya,  8  grs.  gentian 
root,  and  12  grs.  of  soluble  citrate  iron. 
GLEANINGS  FROM  THE  EUROPEAN  JOURNALS.. 
By  the  Editor. 
Test  for  Solania  and  Solanidia. — Equal  volumes  of  concentrated 
sulphuric  acid  and  alcohol  are  mixed  ;  a  trace  of  solania  added  to  the 
warm  mixture  produces  a  rose-red,  larger  quantities  a  cherry-red 
color,  which  disappears  after  five  or  six  hours,  and  the  intensity  of 
which  is  not  affected  by  the  presence  of  even  large  quantities  of  mor- 
phia. 0.  Bach  regards  this  as  very  important,  since  in  following 
Sfcas'  process,  morphia  and  solania  are  the  only  alkaloids  which  are 
not  taken  up  by  ether  from  alkaline  or  acid  solutions.  The  solution 
of  much  solania  in  concentrated  nitric  acid  is  yellowish,  and  separates 
after  ten  hours  colorless  floccules,  without  acquiring  a  blue  color. — 
Journ.f.  Prakt.  Chem.,  1873,  248. 
Note  on  the  Nessler  Test. — J.  Alfred  Wanklyn. — In  the  course  of 
the  various  controversies  relating  to  the  water  process  frequent  men- 
tion bas  been  made  of  the  time  required  for  the  development  of  the 
Nessler  color.  According  to  some  experimenters,  a  few  minutes  suf- 
fice for  the  full  coloration  ;  according  to  others,  half  an  hour  or  more 
is  necessary. 
/ 
