GLEANINGS  FROM  THE  FRENCH  JOURNALS. 
228 
1859)  states  that  under  the  name  of  quinio  a  product  of  cincho- 
na bark  is  known  in  Brazil,  prepared  from  the  fresh  bark  by  aid 
of  lime  and  alcohol.  It  is  very  rich  in  quinine,  and  yields  the 
crystallized  sulphate  by  boiling  with  dilute  sulphuric  acid.  It  is 
a  yellow,  resinous  looking  substance,  insoluble  in  cold  water, 
gives  bitterness  to  hot  water,  and  is  very  soluble  in  alcohol  and 
ether.  It  is  free  from  cellulose,  and  leaves  only  a  small  ash  of 
carbonate  of  lime  by  incineration. — Jour,  de  Pharm. 
lodoacetic  Acid. — MM.  Perkin  and  Duppa  (Annalen  der 
Chern.  und  Pharm.)  have  succeeded  in  making  this  new  acid  by 
decomposing  bromacetic  ether  by  means  of  iodide  of  potas- 
sium in  powder  ;  the  liquid  becomes  yellow  and  becomes  sensibly 
heated.  After  some  hours'  repose  in  the  dark,  at  the  tempera- 
ture of  104Q  to  122°  F.,  the  bromide  of  potassium  is  separa- 
ted by  a  filter,  and  the  liquid  boiled  with  baryta  water  until  the 
odor  at  first  produced  is  dissipated.  The  excess  of  baryta  is 
now  eliminated  by  a  current  of  carbonic  acid  gas,  when  the  li- 
quid is  filtered  and  evaporated  to  get  crystallized  iodoacetate  of 
baryta,  from  which  the  acid  can  be  separated  by  means  of  sul- 
phuric acid.  Its  formula  is  C4H3I04,  and  may  be  obtained  in 
crystals  by  evaporation  in  vacuo  over  sulphuric  acid.  When 
boiled  with  oxide  of  silver  it  gives  glycolic  acid. 
The  alkaline  iodoacetates  are  deliquescent.  lodoacetic  ether 
is  an  oleaginous  liquid,  heavier  than  water,  with  an  irritating 
odor.    It  is  decomposed  by  light  Jour,  de  Pharmaoie  et  de 
Oh.,  Fevr.  1860. 
Purification  of  Arseniferous  Phosphoric  Acid. — M.  Werbrunn, 
(Arch,  der  Pharm.)  says  that  arsenious  acid,  when  present  in 
phosphoric  acid,  may  be  removed  by  boiling  its  solution  with 
hydrochloric  acid,  which  converts  the  acid  into  chloride  of  arse- 
nic, which  is  then  volatilized  with  the  excess  of  muriatic  acid. 
Preparation  of  Nitrate  of  Silver,  by  M.  Greiner,  Pharmacien 
of  Schiltigheim,  near  Strasburgh. — Take  any  quantity  of  silver 
coin,  dissolve  it  in  nitric  acid,  precipitate  the  impure  nitrate  of 
silver  thus  obtained  by  a  solution  of  sulphate  of  soda  till  it- 
ceases  to  yield,  wash  the  sulphate  of  silver,  and  then  decompose 
