504 
AMERICAN  PHARMACEUTICAL  ASSOCIATION. 
Query  22d.— What  are  the  practical  reactions  between  the  Permanga- 
nates and  Alcohol  of  various  strengths  and  degrees  of  clearness,  and  how 
far  can  such  reactions  be  made  available  for  producing  Deodorized  Alco- 
hol, Cologne  Spirit,  or  clean  Alcohol,  upon  the  small  scale,  with  special 
reference  to  the  Alcohol  recovered  from  Fluid  Extracts  and  other 
Galenical  preparations  ? 
Accepted  by  G.  F.  H.  Markoe,  of  Boston,  Mass. 
Query  23d. — What  are  the  objections,  if  any,  to  the  officinal  process 
for  Ferri  et  Potassse  Tartras  ?  and  is  the  salt  of  commerce  practically 
identical  with  that  of  the  Pharmacopoeia  ? 
Accepted  by  P.  W.  Bedford,  of  New  York. 
Query  24th. — The  U.  S   Pharmacopoeia  defines  Yalerianic  Acid  as 
having  a  sp.  gr.  0.933.  Is  this  sufficiently  accurate  for  practical  purposes  ? 
and  if  not,  what  standard  should  be  adopted  ? 
Accepted  by  F.  G.  Mussgiller,  of  Brooklyn,  N.  Y. 
Query  25th. — From  what  sources  in  this  country  can  metallic  Bismuth 
be  obtained,  and  to  what  amount  are  they  rendered  available? 
Accepted  by  G.  A.  Tufts,  of  Dover,  N.H. 
Query  26th. — It  is  found  that  the  process  of  the  U.  S.  Pharmacopoeia 
for  Pyrophosphate  of  Iron  yields  a  preparation  which  it  is  sometimes 
impossible  to  scale.    Can  a  better  process  be  devised  ? 
Accepted  by  S.  P.  Duffield,  of  Detroit,  Mich. 
Query  27th. — What  are  the  best  and  most  economical  means  for 
ventilating  the  laboratory  and  shop  of  the  pharmacist,  so  as  to  promote 
the  health  of  the  occupants,  without  too  much  expense  of  fuel  in  winter? 
Accepted  by  H.  T.  Gummings,  of  Portland,  Me. 
Query  28th. — What  are  the  causes  of  the  variations  in  appearance  of 
Blue  Mass  in  commerce,  very  little  of  which  is  identical  with  that  of  the 
U.  S.  Pharmacopoeia?  Which  of  the  ingredients  is  generally  deficient? 
Accepted  by  P.  W.  Bedford,  of  New  York. 
Query  29th. — Can  any  improvement  be  suggested  in  Syrupus  Lactu- 
carii,  U.  S.  P.  I860  ? 
Accepted  by  P.  W.  Bedford,  of  New  York. 
Query  30th.— Is  there  a  rapid  method  by  which  suppositories  can  be 
prepared,  whereby  the  use  of  a  hardening  ingredient  in  connection  with 
cocoa  butter  will  not  be  required  ? 
Accepted  by  Chas.  L.  Fberle,  of  Philadelphia,  Pa. 
Query  31st. — Does  the  addition  of  metallic  Iron  or  Zinc  to  ordinary 
Hydrochloric  Acid  which  contains  Sulphuric  Acid  as  an  impurity,  de- 
compose the  Sulphuric  Acid,  and  liberate  Sulphide  of  Hydrogen? 
Accepted  by  E.  R.  Squibb,  of  Brooklyn,  N.  Y. 
Query  32d. — Does  the  lactescent  juice  of  the  indigenous  Lactuca 
elongata  possess  properties  similar  to  those  of  European  lactucarium  ? 
Accepted  by  John  M.  Maisch,  of  Philadelphia,  Pa. 
