A™*ctober,Pi904!m'}    American  Pharmaceutical  Association.  487 
Co-operative  Work  on  Opium  Assaying. 
By  Lyman  F.  Kebler. 
This  paper  embodies  an  account  of  the  results  obtained  by  a 
number  of  independent  workers,  who  were  asked  to  analyze  a 
sample  of  opium  supplied  by  the  Bureau  of  Chemistry. 
Examination  of  Official  Drugs. 
By  Daniel  Base. 
The  author  has  examined  1 1 5  specimens,  the  majority  of  which 
were  acceptable,  conforming  more  or  less  closely  to  the  demands  of 
the  U.S. P.  But  two  of  the  drugs  were  found  to  be  grossly  adul- 
terated— asafcetida  and  oil  of  wintergreen.  Iodoform  gauze  was 
found  to  be  deficient  in  iodoform,  being  but  one-half  the  advertised 
strength. 
The  Determination  of  Codeine  in  Opium. 
By  Chas.  E.  Caspari. 
The  author  describes,  in  detail,  a  satisfactory  method  for  the 
determination  of  codeine  in  opium. 
The  Use  of  Potassium  Biiodate  for  Standardizing  Volumetric 
Solutions. 
By  Chas.  E.  Caspari. 
In  this  paper  the  author  records  some  observations  made  on  the 
use  of  potassium  biiodate  for  standardizing  volumetric  solutions  of 
sodium  thiosulphate,  iodine,  potassium  permanganate,  silver  nitrate 
and  alkalies. 
The  Need  of  Greater  Care  in  the  Testing  of  Clinical  Ther- 
mometers. 
By  Caswell  A.  Mayo. 
In  this  paper  the  writer  records  the  varying  results  that  were 
obtained  by  submitting  the  ordinary  clinical  thermometers  to 
examination  at  the  Bureau  of  Standards  in  Washington. 
Saponin  as  an  Emulsifying  Agent. 
By  H.  P.  Hynson  and  H.  A.  B.  Dunning. 
The  authors  assert  that  from  a  practical  point  of  view  saponin  is 
a  very  desirable  emulsifying  agent ;  whether  or  not  it  is  sufficiently 
toxic  to  be  objectionable  or  dangerous,  is  still  an  open  question. 
