49 2  Gleanings  from  the  Danish  Journals.  {AVo°v?4h6arm* 
GLEANINGS  FROM  THE  DANISH  JOURNALS. 
BY  HANS  M.  WILDER. 
Enameled  Iron  Pots. — Werner-Cronquist  and  Eggertz  found  until 
38  per  cent,  lead  in  the  enamel.  In  a  pot  of  8  cubic  inches  capacity 
was  boiled,  for  3J  hours,  450  grams  vinegar  (10  per  cent.),  and  yielded 
0  0 14  grams  lead. — Arch,  for  Pharm.,  'j6  p.  248,  from  Hygiea,  1876. 
Blaud's  Pills. — Ae  recommends  to  keep  on  hand  a  mixture  of  ferri 
sulphas  15  parts,  potass,  carb.  15  parts  and  sugar  3  parts.  If  pills  are 
prescribed  to  be  made,  for  instance,  from  15  parts  each  of  sulph.  ferri 
and  pot.  carb.,  33  parts  of  the  above  mass  is  taken  and  made  into  pills 
with  about  6  parts  powdered  marshmallow  root.  Pills  thus  made  keep 
their  shape  and  are  easily  digested. — Ibid,,  p.  256,  from  Arch.  d.  Ph. 
Whether  Trees  have  been  Cut  at  the  Right  Season. — Prillieux  recom- 
mends iodine,  which  colors  the  cross  section  of  trees  cut  in  winter 
time  yellow,  with  blueish-black  lines.  Trees  cut  at  any  other  season 
will  only  be  colored  yellow  by  iodine. — Ibid.,  p.  289,  from  Dingier. 
Pharmacopoeia  Danica. — The  second  supplement  contains  the  fol- 
lowing additions  :  Acid,  salicylic,  bals.  styrax,  caffeina,  iodoform  ;  of 
preparations  :  Aqua  chamomillae  concentrata.  100  parts  recently  dis- 
tilled chamomile  water  are  mixed  with  2  parts  alcohol,  and  therefrom 
distilled  10  parts.  Likewise  elder-flower  water  and  linden-flower 
water. — Ibid.,  p.  299. 
Pure  nitrogen. — Knapp  produces  it  in  short  time  and  in  quite  con- 
siderable quantities  by  slightly  heating  a  concentrated  solution  of  53*5 
chloride  of  ammonium  and  69  nitrate  of  sodium. — Ibid.,  356,  from 
Buchner,  1876,  p.  5. 
THE  DIFFERENT  SYRUPS  OF  THE  PHOSPHATES  IN  GENERAL  USE. 
BY  ERNERT  C  SAUNDERS. 
The  difference  in  the  quality  and  strength  of  different  samples  of  the 
preparation  known  as  Parrish's  Chemical  Food,  as  found  in  the  market 
at  the  present  time,  has  been  the  subject  of  considerable  discussion 
during  the  past  few  months,  but  as,  with  the  exception  of  Mr.  W.  L. 
Howie  in  his  useful  and  practical  paper,  all  seem  to  have  devoted  their 
energies  more  to  finding  out  faults  in  ordinary  samples  of  the  prepara- 
tion than  to  remedying  them,  I  venture  to  submit  the  following  re- 
