454 
Progress  in  Pharmacy. 
f  Am.  Jour.  Pharm. 
\  Sei)tember,  1911. 
such  an  amount  of  saccharin  in  food  and  beverage. — /.  Iiid.  and 
Eng.  Chem.,  191 1,  v.  3,  p.  438. 
Scarlet  R,  Medicinal  Bicbrich,  is  amido-azo-tokiol-betanaphthol, 
and  occurs  as  a  dark  brownish-red  powder  nearly  insoluble  in 
water,  slightly  soluble  in  benzene  and  acetone,  and  easily  soluble 
in  chloroform,  oils,  fats,  and  phenols.  It  is  slightly  soluble  in  cold 
alcohol  and  somewhat  more  soluble  in  hot  alcohol.  It  is  generally 
used  in  the  form  of  ointment,  and  is  said  to  be  useful  in  stimulating 
the  proliferation  of  epithehal  cells. — /.  Am.  M.  Assoc.,  191 1,  v.  57, 
p.  291. 
Thyroid  Standard. — Bennett,  R.  R.,  in  a  paper  on  the  standard- 
ization of  dried  thyroid  gland,  suggests  that  it  should  be  done  on 
the  basis  of  0.15  per  cent,  of  iodine,  and  describes  Baumann's  method 
for  determining  the  iodine.  It  appears  that  the  iodine  standard  is 
most  commonly  used  commercially. — Chem.  and  Drug.,  July  29, 
1911,  p.  151. 
Nezif  Preserving  Medium. — A  useful  solution  for  fixing  and 
preserving  plants  and  animals  in  their  natural  colors,  recently 
invented  by  Wickerscheuer,  of  the  Berlin  Zoologic  Museum,  is 
prepared  by  dissolving  100  gms.  of  alum,  25  gms.  of  sodium 
chloride,  12  gms.  of  potassium  nitrate,  60  gms.  of  potassium  car- 
bonate, .  and  10  gms.  of  arsenic  trioxide  in  3000  c.c.  of  boiling 
water.  To  this  solution  1200  c.c.  of  glycerin  and  300  c.c.  of  methyl 
alcohol  are  subsequently  added.  Objects  preserved  in  this  liquid 
are  said  to  retain  their  form,  color,  and  suppleness  to  a  remark- 
able degree. — /.  Am.  M.  Assoc.,  191 1,  v.  57,  p.  400. 
