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^""Moy^'isgi™'  }  Material  f 07^  Filtration  and  Decolorization.  251 
Sto7'ax  and  Sulphuric  Acid. — E.  Mylius  observed  that  by  mixing 
storax  with  an  equal  weight  of  pure  concentrated  sulphuric  acid,  dilu- 
ting the  solution  with  water  and  washing  the  precipitate,  different 
results  are  obtained  according  to  the  temperature  of  the  mixture  ;  if 
kept  cold,  the  precipitate  produced  by  water  on  being  treated  with 
ether  will  leave  about  10  per  cent,  of  slender  white  crystals  nearly 
insoluble  in  ether.  But  if  heat  Avas  generated  on  mixing  the  storax 
and  sulphuric  acid,  the  precipitate  by  water  was  completely  soluble 
in  ether,  yielding  a  nearly  black  solution. — Phar.  Zeitung,  1881,  p.  140. 
Syrupus  jnlocarpi. — 100  gm.  jaborandi  leaves  are  macerated  with  the 
same  quantity  of  alcohol  for  three  hours;  sufficient  boiling  water  is 
then  added  to  obtain  1000  grams  infusion  in  which  1,800  grams  sugar 
is  dissolved. — Ibid,,  208. 
Granular  Effervescent  Citrate  of  Iron. — Citric  acid  40,  sodium  bi- 
carbonate 50,  and  ammonio-citrate  of  iron  10  parts,  all  in  fine  powder,, 
are  mixed  and  in  a  flat  vessel  gradually  and  with  continued  stirring 
heated  to  about  100°C.,  when  the  mixture  becomes  granular  and  i& 
preserved  in  well  stoppered  bottles. — Ibid. 
Ilustard  for  Table  Use. — An  aromatic  vinegar  is  prepared  by  mace- 
rating for  a  week  120  grams  onion,  20*0  garlic,  30*0  pepper,  lOO'O 
bay  leaves  (laurus  nobilis)  and  300*0  table  salt  with  8  liters  of  good 
vinegar  and  dissolving  in  the  strained  liquid  oil  of  esdragon  2*0,  oils, 
of  parsley  and  of  celery  each  1*0,  and  oils  of  allspice,  cinnamon,  cloves 
and  nutmeg  each  0*5  gram.  To  prepare  the  mustard  a  convenient 
quantity  of  the  ground  seeds  deprived  of  the  fixed  oil  is  mixed  with 
sufficient  of  the  above  vinegar  to  form  a  thin  paste  and  after  macera- 
ting in  a  covered  vessel  for  several  days  sufficient  of  the  vinegar  is 
added  to  render  the  mixture  semi-liquid. — Ibid. 
A  Material  for  Filtration  and  Decolorization,  recommended 
bv  G.  C.  Pfandler,  London,  consists  of  three  parts  of  dried  or  baked 
gianulated  clay,  mixed  with  four  parts  of  blood;  sometimes  a  propor- 
tion of  charcoal  is  added.  The  mixture  is  moulded  into  lumps  of 
convenient  form,  dried,  broken  into  small  pieces,  mixed  with  an  equal 
bulk  of  granulated  clay,  and  then  carbonized  in  a  retort. — Scientifio 
American,  Feb.  5. 
