Am.  Jour.  Pharm.  \ 
March,  19 19.  > 
Correspondence. 
185 
In  all  of  these  tests  recently  boiled  water  should  be  used,  other- 
wise the  rising  bubbles  of  dissolved  gases  interfere  in  several  days. 
43  Scott  Street, 
Toronto,  Canada. 
CORRESPONDENCE. 
THE  COMMITTEE  OF  REVISION  OF  THE  UNITED 
STATES  PHARMACOPOEIA  1910-1920. 
The  Next  Pharmacopceia. 
May,  1920,  only  a  little  more  than  a  year  hence,  will  again  wit- 
ness the  assembling  in  Washington  of  the  delegates  to  the  United 
States  Pharmacopceial  Convention.  This  fact  should  stimulate  pre- 
convention  activity  on  the  part  of  those  who  have  had  experience 
with  the  present  revision  and  are  prepared  to  suggest  improvements 
for  a  new  edition. 
It  is  desirable  at  this  time  that  pharmacists,  physicians,  chemists, 
botanists,  biological  experts,  or  any  others  who  use  the  U.  S.  P.  IX. 
should  submit  to  the  chairman  of  the  Revision  Committee  either 
personally  or  through  associations,  such  helpful  information  as  their 
experience  may  have  suggested,  or  which  may  have  come  to  their 
attention. 
These  suggestions  will  be  compiled  systematically  and  circular- 
ized to  the  present  Revision 'Committee,  the  authors  being  credited 
in  each  instance  with  the  recommendations,  and  the  compilation  will 
be  submitted  to  the  1920  convention  for  the  benefit  of  the  new 
Committee  of  Revision. 
You  are  earnestly  urged  to  cooperate  with  the  Committee  of 
Revision  in  the  preparation  of  this  report  and  it  is  requested  that  in 
sending  in  your  suggestions,  the  special  form  enclosed  be  employed. 
Please  use  a  separate  sheet  for  each  subject.  As  many  forms  as 
are  desired  will  be  mailed  on  request. 
Respectfully  submitted, 
Charles  H.  LaWall, 
Chairman  of  the  Committee  of  Revision  of  the  United  States 
Pharmacopoeia. 
