AMERICAN  PHARMACEUTICAL  ASSOCIATION.  525 
And  how  does  the  elaterium  produced  compare  with  the  best  European 
drug? 
Accepted  by  Henry  A.  Tilden,  of  New  Lebanon,  N.  Y. 
20.  Is  there  an  ergotized  substance  developed  in  Indian  corn  (Zea 
mays  ?)  And  if  so,  has  it  properties  analogous  to  those  of  rye  and  wheat 
ergot  ? 
Accepted  by  Prof.  George  Thurber,  of  New  York  city. 
21.  What  it  the  best  test  of  the  therapeutical  value  of  extract  of  Indian 
hemp,  that  may  be  applied  by  the  apothecary,  without  resorting  to  its  in- 
ternal exhibition  ? 
Accepted  by  Edward  Parrish,  of  Philadelphia. 
22.  What  is  the  active  principle  of  Gillenia  trifoliata  ?  And  is  it  an 
alkaloid  or  a  neutral  principle  ? 
Offered  for  general  acceptance. 
23.  The  commercial  history,  production  and  statistics  of  extract  of 
liquorice,  including  its  several  sources. 
Accepted  by  John  D.  Dix,  of  New  York  city. 
24.  What  are  the  claims  of  guaiac  (Resina  Guaiaci)  to  be  considered  a 
balsam  ? 
Accepted  by  William  Procter,  Jr.,  of  Philadelphia. 
25.  What  are  the  changes  which  occur  in  the  officinal  ethereal  oil 
(U.  S.  P.,)  by  keeping,  and  can  these  changes  be  retarded  ? 
Accepted  by  Dr.  Edward  E.  Squibb,  of  New  York. 
26.  Are  the  salts  of  morphia  of  present  commerce  different  in  medicinal 
power  from  those  formerly  manufactured  ?  And  if  so,  to  what  cause  is  it 
to  be  attributed  ? 
Accepted  by  Dr.  Edward  R.  Squibb,  of  New  York. 
27.  Has  the  average  morphia  strength  of  opium  from  Smyrna  depre- 
ciated from  its  earlier  value  ?    And  if  so,  to  what  extent  ? 
Accepted  by  P.  Wendover  Bedford,  of  New  York  city. 
28.  Several  species  of  Krameria  (K.  lanceolata  and  K.  canescens,  &c.,) 
are  abundant  in  Texas  and  other  parts  of  the  South-west.  Question, — Can 
these  roots  be  substituted  for  the  officinal  Krameria  triandra? 
Accepted  by  Prof.  George  Thurber,  of  New  York  city. 
29.  It  has  been  asserted  that  hops  that  have  been  used  in  obtaining  the 
Lupulin  of  commerce  are  afterwards  sold  as  hops.  Question, — Is  the  as- 
sertion true  ?  And  if  so,  to  what  extent  is  it  carried  on  ?  Where  ?  And 
what  are  the  best  means  of  detecting  the  fraud  ? 
Accepted  by  Charles  A.  Tufts,  of  Dover,  N.  H. 
30.  Patents  in  their  relation  to  pharmacy  and  medicine. 
Accepted  by  Edward  Parrish,  of  Philadelphia, 
