186 
PHARMACOPI^)  CONVENTION  OF  1860. 
ted  to  120,000  times  its  bulk.  How  such  a  mistake  should  occur  I  cannot 
imagine  ;  since,  in  accurate  experiments  lately  made  by  me,  I  have  de- 
tected it  at  a  dilution  of  560,000  times  ;  and  when  at  280,000  times,  the 
layer  is  so  strong  as  to  be  fit  for  sublimation,  having  a  bright  steel  color  : 
at  560,000  times,  however,  the  deposit  is  more  of  a  violet  color.  These  ex- 
periments were  made  by  dissolving  a  grain  of  arsenious  acid  in  a  pint  of 
distilled  water,  and  diluting  from  time  to  time. 
Compared  with  arsenic  no  deposit  of  antimony  from  a  solution  of  tartar 
emetic  took  place  at  either  of  these  points  of  dilution, — J".  Horsley,  F.C.S. — 
Chem.  News,  Dec.  10,  1859. 
PHAEMACOPCEIA  CONTENTION  OF  1860. 
The  following  appointments  of  Delegates  to  the  Convention  for  revising 
the  Pharmacopceia,  to  meet  at  Washington  on  the  first  Wednesday  of 
May  next,  having  been  duly  made  known  to  me,  are  hereby  announced, 
in  compliance  with  a  provision  of  the  Convention  of  1850. 
From  the  Massachusetts  College  of  Pharmacy,  Messrs.  Theodore 
Metcalf  and  Charles  T.  Carney;  from  the  New  York  Academy  of 
Medicine,  B.  W.  McCready,  M.  D.,  E.  H.  Davis.  M.  D.,  and  E.  E. 
Squibb,  M.  D.;  from  the  College  of  Physicians  of  Philadelphia,  George 
B.  Wood,  M.  D.,  K.  P.  Thomas,  M.  D.,  and  Eobert  Bridges,  M.  D.; 
from  the  University  of  Pennsylvania,  Joseph  Carson,  M.  D.,  E.  E. 
Eogers,  M.  D.,  and  Joseph  Leidy,  M.  D.;  from  the  Jefferson  Medical 
College  of  Philadelphia,  Franklin  Bache,  M.  D.,  and  T.  D.  Mitchell, 
M.  D  ;  from  the  Philadelphia  College  of  Pharmacy,  Messrs.  William 
Procter,  Jr.,  Edward  Parrish,  and  Alfred  B.  Taylor  ;  and  from  the 
Medical  Society  of  the  State  of  North  Carolina,  Wm.  Geo.  Thomas,  M.  D., 
Peter  E.  Hines,  M.  D.,  and  Edward  Warren,  M.  D. 
By  order  of  the  Convention  of  1850. 
GEO.  B.  WOOD,  M.D,  President. 
Philadelphia,  Feb.  14th,  1860. 
As  we  were  going  to  press,  the  following-  communication  was  received 
from  Dr.  Wood : 
11  Since  my  former  communication,  the  following  appointments  of  Dele- 
gates have  been  announced  to  me  : 
From  the  Medical  Society  of  the  State  of  New  York,  Drs.  E.  E,  Squibb 
Howard  Townsend,  and  Caleb  Green;  from  the  College  of  Pharmacy 
of  the  City  of  New  York,  Messrs.  Wm.  Hegeman,  Alex.  Cushman,  and 
John  Meakim  ;  from  the  Faculty  of  Physic  of  the  University  of  Maryland, 
Profs.  Samuel  Chew,  Charles  Frick,  and  Wm.  E.  A.  Aikin;  from  the 
Maryland  College  of  Pharmacy,  Messrs.  G.  W.  Andrews,  Israel  J. 
Grahame,  and  Alpheus  S.  Sharp;  and  from  the  Cincinnati  College  oi 
Pharmacy,  Messrs.  E.  S.  Wayne,  W.  S.  Merrill,  and  W.  J.M.  Gordon. 
GEO.  B.  WOOD. 
Feb.  23d,  1860." 
[Medical  and  PharmaceuticalJournals  will  please  copy.] 
