AMERICAN  PHARMACEUTICAL  ASSOCIATION.  489 
John  Jackson,  Knoxville,  Tennessee. 
William  A.  Brown,  Boston. 
Ambrose  Smith,  Philadelphia. 
Dr.  Guthrie  gave  notice  that  he  would  offer  an  amendment  to 
the  Constitution  at  a  future  sitting. 
The  time  having  arrived  for  proceeding  on  the  excursion  to 
Mount  Vernon,  the  meeting  adjourned  to  meet  on  their  return. 
Mansion  Souse,  Mount  Vernon,  Va.,  Sept.  lQth,  12 1  o'clock,  P.  M. 
The  President  having  called  the  Association  to  order,  the 
thanks  of  the  Association  were,  on  motion,  tendered  to  Mr.  John 
A.  Washington  for  his  kindness  in  permitting  the  members  to 
m  examine  the  mansion  and  grounds  of  Mount  Vernon,  and  for 
giving  them  access  to  a  portion  of  the  building  containing  many 
interesting  articles  that  had  belonged  to  the  illustrious  Wash- 
ington, not  usually  shown  to  visitors. 
The  thanks  of  the  Association  were  also  tendered  to  Captain 
Baker,  of  the  steamer  Thomas  Colyer,  for  his  kindness  and 
courtesy  during  the  day. 
On  motion,  the  minutes  of  the  proceedings  of  the  meeting  at 
Mount  Vernon  were  ordered  to  be  entered  on  the  minutes  of  the 
Association. 
Evening  Session — Seven  o'clock. 
The  meeting  was  called  to  order  by  the  President. 
Dr.  Jos.  Walsh,  Chairman  of  the  Committee  of  Arrangements 
of  the  Washington  Pharmaceutical  Association,  in  a  few  appropri- 
ate remarks,  presented  to  the  Association  an  ambrotype  group  of 
the  members,  taken  as  they  stood  at  the  Tomb  of  Washington. 
Prof.  Guthrie,  on  behalf  of  the  Association,  accepted  the  picture, 
and  responded  to  Mr.  Walsh  in  an  appropriate  speech. 
The  reading  of  scientific  reports  was  resumed. 
14.  The  process  of  displacement  or  percolation  ;  what  are  the  conditions 
and  precautions  which  give  it  the  greatest  simplicity  and  efficiency  as  a 
means  of  extraction  in  practical  pharmacy  ? 
This  report,  by  Prof.  Grahame,  of  Baltimore,  was  read  and 
illustrated  by  numerous  experiments.  The  paper  was  accepted 
and  referred  for  publication. 
15.  The  questions  relating  to  Cornus  florida,  referred  to  John  M.  Maisch, 
