"^"^  Ma^is^s'"'^'"'}        Gleanings  from  Foreign  Journals.  241 
Acidulate  the  urine  with  HCl,  precipitate  with  palladious  chloride ; 
the  following  day  collect  the  ])recipitate  on  a  filter,  wash,  mix  with 
soda  and  heat  to  redness ;  extract  with  hot  water,  filter,  wash,  acidu- 
late the  filtrate,  and  precipitate  again  with  palladious  chloride ;  collect 
the  precipitate  on  a  filter,  wash,  dry  and  weigh.  The  resulting  palla- 
dious iodide  contains  the  iodine  present  as  iodide. 
For  determining  all  the  iodine,  measure  a  cerain  quantity  of  urine ; 
add  soda,  evaporate  to  dryness,  heat  to  redness,  extract  repeatedly  with 
hot  water,  filter,  acidulate,  and  precipitate  with  palladious  chloride; 
weigh,  and  calculate  the  iodine.  Harnack  found  in  this  way  0'5277 
iodine  in  1  liter  of  which  but  0*1072  was  present  as  iodide,  while 
nearly  |-  of  the  iodine  was  in  combination,  and  could  be  estimated 
only  after  ignition.— P/i.  Zfg.,  No.  20,  1885. 
Dental  Mastich. — Dissolve  4  mastich  and  2*5  balsam  of  Peru  in  7 
chloroform. — Union  Pharm.,  February,  1885. 
A  formula  in  ^'  Phar.  Zeitg."  recommends  2  mastich,  2  balsam  of 
Peru,  and  7  Gm.  chloroform. 
Vinum  iodatiim  is  a  preparation  highly  praised  by  INI.  H.  Barnouvin. 
Any  wine  of  but  small  percentage  of  tannin  may  be  employed.  The 
proportions  are  0*4  to  0*5  Gm.  iodine,  dissolved  in  a  small  quantity  of 
alcohol,  and  wine  q.  s.  to  make  1  liter. — Ij  Union  Pharni.,  February, 
1885. 
Corn  Cure. — Oleum  phosphoratum  is  recommended  as  excellent  to 
be  applied  every  morning  on  the  place  of  the  stocking  touching  the 
corn. 
To  Distinguish  Fresh  from  Old  Ergot. — Koster  recommends  mace- 
rating for  some  time  2  Gm.  of  the  powder  with  5  cc.  ether.  The 
resulting  solution  will  be  colorless  if  the  ergot  is  fresh,  but  yellowish 
if  old. — Arch.  d.  Pharm. 
Bernbeck,  in  Phar.  Ztg.,''  remarks  that  this  solution  should  be 
neutral,  and  that  the  oil  of  old  ergot  is  rancid,  therefore  giving  a  more 
or  less  acid  reaction. 
Aqua  Picis. — In  the  place  of  pine  wood  saw  dust,  previously  recom- 
mended (see  "  Amer.  Jour.  Phar.,"  1877,  p.  350)  for  dividing  (pulve- 
rizing) the  tar,  A.  Simon  uses  the  residue  of  powdered  cinchona  bark 
left  from  the  preparation  of  the  tincture,  etc.  The  resulting  tar  water 
is  slightly  bitter  from  traces  of  alkaloids,  the  solution  of  which  is 
flavored  by  the  acids  of  the  tar.    The  tar  powder  thus  obtained  may 
16 
