498 
MINUTES  OF  THE 
quired  by  the  resolution  passed  at  the  morning  session,  relative 
to  life  membership. 
Philip  L.  Milleman,  of  Chicago,  read  a  volunteer  paper  on 
hydrated  sesqui-oxide  of  iron,  in  which  the  preservation  of  the 
same  as  an  antidote  to  arsenic  by  means  of  glycerin  is  advo- 
cated.   The  paper  elicited  some  discussion. 
The  same  gentleman  presented  specimens  of  the  rhizome  and 
rootlets  of  Hydrastis  canadensis,  which  had  been  prepared  so 
as  to  resemble  those  of  Aristolochia  serpentaria,  and  which  was 
sold  in  the  New  York  market  to  a  Chicago  firm. 
The  Treasurer  read  a  letter  from  H.  T.  Cummings,  M.  D.,  o( 
Portland,  Me.,  donating  to  the  treasury  of  the  Association  ten 
dollars  ;  he  also  stated  that  twenty  dollars  had  been  received 
by  S.  M.  Col  cord  for  the  same  purpose,  and  that  several  mem- 
bers had  offered  to  send  contributions  on  their  return  home. 
Dr.  E.  E.  Squibb  read  a  volunteer  paper  on  commercial 
jalap,  showing  the  inferiority  of  many  lots  of  this  drug  as  it  is 
met  with  in  commerce. 
The  same  member  read  a  paper  entitled  "  on  repercolation  as 
applied  to  the  cinchonas." 
It  was  moved  and  carried  that  all  volunteer  papers  read  at 
this  session  be  accepted.,  and  referred  for  publication. 
A  motion  by  Mr.  Colby  to  take  up  the  resolution  of  William 
A.  Brewer,  laid  on  the  table  at  the  fourth  session,  was,  in  the 
absence  of  Mr.  Brewer,  negatived. 
The  Secretary  read  a  letter  from  Dr.  Samuel  S.  Garrigues,  of 
Saginaw,  Mich.,  relative  to  query  24,  in  which  he  stated  his 
inability  to  get  sufficient  data  regarding  the  sources  of  supply 
of  tar  during  the  late  war  to  justify  his  answering  it.  On  mo- 
tion, it  was  dropped  from  the  list. 
J.  Y.  Heydenreich  read  an  essay  in  answer  to  query  No.  2, 
regarding  the  principle  to  which  the  diuretic  power  of  cubebs 
is  due,  &c.  The  paper  elicited  some  discussion  relative  to  the 
preparation  of  oleo-resin  of  cubebs,  and  the  stability  of  the 
volatile  oil  of  cubebs. 
The  same  author  read  a  paper  on  the  officinal  formula  for 
tincture  of  chloride  of  iron,  in  reply  to  query  17,  which  elicited 
an  animated  discussion. 
