AMERICAN  PHARMACEUTICAL  ASSOCIATION.  491 
nutritive  value  of  the  preparations,  and  how  do  they  compare  one  with 
another  ?  Accepted  hy  Albert  E.  Ebert,  of  Chicago. 
4.  What  proportion  of  mercury  is  contained  in  the  blue  pill  of  the 
market  ?  Accepted  ly  Charles  H.  Bassett,  of  Boston. 
5.  What  is  the  quality  of  bees'  wax  in  the  market,  and  what  are  the 
best  means  of  detecting  its  adulterations  ? 
Accepted  hy  John  J.  Thomsen,  of  Baltimore, 
6.  To  what  does  poke  root  {Phytolaccce  Radix)  owe  its  activity?  Can 
the  active  principles  be  isolated  ? 
Accepted  by  J.  F.  Hancoclc,  Baltimore. 
7.  Ammonio  citrate  of  bismuth  loses  its  solubility  to  a  great  extent  by 
age.  Can  any  other  salt  of  bismuth  replace  this  in  the  desirable  quality 
of  solubility,  and  at  the  same  time  be  more  stable  in  composition  ? 
Accepted  by  Prof.  Geo.  F.  H.  MarJcoe,  of  Boston. 
8.  To  what  extent  are  the  essential  oils  adulterated  or  sophisticated  ? 
How  may  impurities  be  detected? 
Accepted  by  William  S.  Thompson,  of  Baltimore. 
9.  Glycerin  of  various  grades  is  furnished  by  the  manufacturers.  In 
what  respect  do  they  dififer?  What  are  the  usual  impurities  of  glycerin, 
and  what  are  the  best  practical  tests  ? 
Accepted  hy  Joseph  P.  Remington,  of  Philadelphia,  Pa. 
10.  What  is  the  best  practical  method  for  making  suppositories  extem- 
poraneously ?  Accepted  hy  R.  B.  Ferguson,  Washington,  D.  C. 
11.  Is  a  liquid  preparation  of  hydrate  ef  chloral  desirable?  If  so, 
what  is  the  best  vehicle  to  preserve,  it  from  change  and  render  it  agree- 
able for  administration  ?  Accepted  hy  Prof.  Geo.  F.  H.  Markoe,  of  Boston. 
12.  Pancreatic  juice  has  been  highly  recommended  to  assist  the  assimi- 
lation of  fat  in  the  human  stomach.  In  what  manner  is  the  fluid  ob- 
tained, and  what  permanent  preparations  of  it  can  be  made  that  will  be 
suitable  for  administration  ? 
Accepted  by  J.  F.  Hancock  of  Baltimore,  Md. 
13.  To  what  extent  are  the  oils  of  pea  nuts,  cotton  seed,  mustard  seed 
or  of  other  seed  sold  for  olive  oil?  and  how  can  they  be  readily  detected 
when  so  substituted  ? 
Accepted  hy  Henry  N.  Rittenhouse,  of  Philadelphia. 
14.  What  is  the  active  principle  of  wahoo  bark  {Enonymus  atropur- 
pureus)  ?  Accepted  hy  Charles  E.  Dohme,  of  Baltimore. 
15.  Are  the  California  wines  and  brandies  suitable  for  medicinal  use? 
Are  the  wines  and  brandies  now  supplied  to  the  Atlantic  cities  from  Cali- 
fornia as  good  as  can  be  obtained  from  that  source  ? 
Accepted  by  William  Searby,  of  San  Francisco. 
16.  What  system  of  apprenticeship  is  best  adapted  to  this  country? 
What  amount  of  preliminary  education  should  be  required  of  such  ap- 
