332 
GLEANINGS  FROM  FRENCH  JOURNALS. 
after  three  hours'  ebullition  the  liquor  shall  be  neutral ;  then  by- 
decanting  the  liquor,  on  standing  it  soon  crystallizes. — Bepert. 
de  Pharmacie,  Mai,  1868. 
Compound  syrup  of  coffee. — M.  3ST.  Severin,  pharmacien  of 
Brussels,  to  gratify  a  wish  that  he  would  give  the  formula  for 
his  anti-rheumatic  and  gout  syrup  of  green  coffee  and  ash  leaves, 
has  published  the  following  in  Bull.  Soc.  Pharm.  Bruxelles : 
Take  of  Mocha  coffee  (in  its  raw  state)  40  troyounces. 
Ash  tree  leaves  (Fraxinus  excelsior),  154  grains. 
Distilled  water,  q.  s.  (about  10J  pints.) 
White  sugar,  26 J  troyounces. 
Phenic  acid,  liquid,  5  drops. 
Pulverize  the  coifee,  introduce  it  into  a  percolator  of  such  size 
as  to  but  half  fill  it,  distilled  water  at  140°  F.,  and  maintain  it 
at  this  temperature  during  12  hours,  and  pour  the  liquor  which 
passes  on  the  sugar.  Continue  the  percolation  with  d^tilled 
water  at  the  same  temperature,  till  the  coifee  is  exhausted.  Mix 
the  last  percolates,  add  the  ash  leaves,  and  evaporate  until  the 
liquid  is  so  far  reduced  as  to  make  with  the  first  dense  liquid 
and  sugar  a  pint  of  syrup,  which  is  to  be  filtered,  and,  after 
cooling,  the  phenic  acid  added. 
Anilin  inks. — The  several  anilin  colors  may  be  used  as  the 
bases  of  inks,  according  to  M.  Fuchs.  To  prepare  red,  blue, 
green,  or  yellow  ink,  use  the  corresponding  anilin  colors  of 
commerce,  in  the  solid  state.  Take  15  parts,  for  example,  in  a 
well  enamelled  vessel,  and  add  150  parts  of  strong  alcohol ; 
allow  them  to  stand  three  hours,  then  add  1000  parts  of  rain  or 
distilled  water,  heat  the  whole  gently  during  several  Irours,  until 
the  odor  of  alcohol  is  dissipated,  add  then  about  60  parts  of  gum 
arabic  dissolved  in  250  parts  of  water,  and  strain.  As  the  anilin 
colors  of  commerce  vary  a  great  deal  in  quality,  the  amount  of 
dilution  must  vary  with  the  sample  used,  and  the  shade  deter- 
mined by  trial. — Bepert.  de  Pharm.,  Mai,  1868. 
Sulphates  in  filtering  paper. — M.  Kruger  has  stated  that  many- 
filtering  papers  of  commerce  contain  considerable  quantities  of 
sulphates,  and  that  it  is  sufficient  to  repass  the  same  distilled 
water  several  times  to  render  that  liquid  capable  of  forming  a 
sensible  precipitate  with  nitrate  of  baryta. 
