488 
PROCEEDINGS  OF  THE 
10.  What  is  the  relative  proportion  of  tannin  in  the  indigenous  astrin- 
gents of  the  United  States,  used  for  medicinal  and  other  purposes. 
Accepted  by  James  T.  Shinn,  of  Philadelphia. 
11.  What  is  the  true  botanical  source  of  Southern  prickley  ash  bark  ? 
Continued  to  Prof.  Robert  P.  Thomas,  of  Philada. 
12.  An  essay  on  Tartaric  Acid  and  the  medicinal  tartrates  in  their 
chemical  and  pharmaceutical  relations. 
Continued  to  Prof.  John  M.  Maisch,  of  Brooklyn,  N.  Y, 
13.  What  course  should  be  adopted  by  Pharmaceutists  in  view  of  the 
present  state  of  the  liquor  market,  as  regards  factitious  brandies  and 
wines?  Continued  to  Henry  F.  Fish,  of  Waterbury,  Conn, 
14.  What  is  the  best  form  and  material  for  a  still  for  use  by  phar- 
maceutists, of  from  two  to  four  gallons  capacity,  appropriate  for  being- 
heated  by  gas  or  stove  heat,  and  which  shall  be  suitable  for  the  recovery 
of  alcohol  in  making  pharmaceutical  preparations. 
Accepted  by  William  Procter,  Jr.,  of  Philadephia. 
15-  What  is  the  most  convenient  and  economical  arrangement  by  which 
the  apothecary  can  quickly  and  reliably  ascertain  the  strength  of  acid  and 
alkaline  liquids  for  pharmaceutical  preparations  ? 
Referred  to  Dr.  Wilson  H.  Pile,  of  Philadelphia. 
16.  What  is  the  best  method  of  keeping  garlic  during  the  autumn, 
winter,  and  spring  in  the  pharmaceutist's  shop,  so  as  to  prevent  its 
growth?  Accepted  by  E.  W.  Sachrider,  of  Cleveland,  Ohio. 
17.  What  are  the  actual  values  of  the  commercial  varieties  of 
Buchu  leaves,  based  on  the  proportion  of  volatile  oil  they  will  yield. 
Accepted  by  P.  W.  Bedford,  of  New  York. 
18.  It  has  been  alleged  that  Ipecacunaha  is  now  adulterated  with 
Euphorbia  Ipecacuanha,  G-illenia  trifoliata  and  other  substances.  What 
are  the  best  means  of  detecting  these  adulterations  of  this  important 
drug?  Accepted  by  William  Wright,  Jr.,  of  New  York. 
19.  Why  should  not  Lactucarium  be  economically  produced  in  the 
United  States  for  the  supply  of  commerce  ? 
Referred  to  Henry  A.  Tilden,  of  New  Lebanon,  N.  Y. 
20.  An  essay  on  the  best  practical  means  of  protecting  volatile  oils 
from  the  injurious  action  of  light  and  air  in  the  apothecary  shop,  during 
the  course  of  their  being  dispensed. 
Accepted  by  Alfred  B.  Taylor,  of  Philadelphia. 
