Amoctu,ri876?rm'}  American  Pharmaceutical  Association.  447 
read,  describing  a  patented  process  and  baking-irons  and  moulds  for 
producing  the  wafer  discs. 
The  detection  of  adulterations  in  oleum  theobromae  (query  44), 
formed  the  subject  of  an  essay  by  Mr.  G.  Ramsperger,  who  experi- 
mented with  cacao  butter,  made  by  himself  from  Caracas  cacao,  by  ex- 
pression, by  ether  and  by  bisulphide  of  carbon.  The  three  samples 
varied  in  their  specific  gravities  (0*850,  0*970  and  0*958)  and  in  the 
fusing  points  (31  to  320,  and  33  to  340  C).  Though  not  infallible, 
ether  appears  to  be  the  best  test  to  detect  adulterations.  Dissolved  in 
two  parts  of  ether  (spec,  grav.?)  at  400  C,  cacao  butter  yields  a  solution 
remaining  clear  on  cooling,  but  becoming  turbid  if  adulterated,  either 
at  once  or  after  standing,  or  separating  on  spontaneous  evaporation, 
little  crystals  and  grains  which  do  not  dissolve  again  in  twice  their 
weight  of  ether.  A  similar  efFect  upon  cacao  butter  has  anilin,  and 
next  to  ether  and  anilin,  the  taste  appears  to  be  the  best  test. 
Mr.  Wm.  Saunders  read  a  paper  "  On  American  species  of  Can- 
tharis  and  allied  Insects  "  (query  47),  illustrating  the  subject  by  the 
exhibition  of  specimens  of  the  insects,  and  tendering  the  use  of  a  litho- 
graphic plate  prepared  at  his  expense,  for  the  forthcoming  Proceedings. 
Mr.  O.  Eberbach  exhibited  quite  a  number  of  samples  of  santonin 
crystallized  by  him  from  different  solvents,  also  commercial  santonin 
in  thick  prismatic  and  in  flat  crystals.  The  result  of  his  inquiries  into 
this  variation  is  the  conclusion  that  the  form  of  crystals  is  due  more 
to  the  quantities  operated  on,  and  to  the  conditions  under  which  the 
crystallization  takes  place,  than  on  the  menstruum  used  as  a  solvent. 
Prof.  Sharpies  read  a  paper  on  the  Adulteration  of  Milk,  and  the 
method  of  detecting  it  by  analysis,  describing  the  method  used  by  him 
and  giving  the  results  of  numerous  assays  of  pure  and  adulterated  milk. 
An  adjournment  took  place  until  7f  o'clock. 
Seventh  Session — Saturday  evening,  September  16th. 
The  minutes  of  the  previous  session  having  been  read  and  approved, 
the  Nominating  Committee  presented  the  following  nominations  for 
the  newly  created  standing  committees. 
For  Committee  on  Prize  Essays — Charles  Rice,  New  York  ;  Geo.  C. 
Close,  Brooklyn,  and  Edward  P.  Nichols,  Newark,  N.  J. 
For  Committee  on  Legislation — John  M.  Maisch,  Philadelphia  ;  Sam'l 
M.  Colcord,  Boston,  and  Wm.  H.  Crawford,  St.  Louis. 
