^"^"oct'^^iST™"}      Amerima  Pliai-mdceutimJ  Association.  50D 
States  the  whey  is  not  considered,  as  formerly,  valuable  in  stock  raising, 
and  is,  tiierefore,  comparatively  a  waste  product.  Samples  of  milk  sugar 
ninde  at  a  cheese  factory  formerly  located  in  Holland  Patent,  N.  Y.,  were 
exhibited,  and  it  was  stated  that  the  manufacture  of  milk  sugar  had  been 
recently  commenced  at  Little  Falls,  N.  Y. 
Fluid  Extract  of  Jaborandi.,  in  a  paper  read  by  Mr.  George  W.  Kennedy 
was  proposed  to  be  made  by  percolating  16  troyounces  of  i^ilocarpus  leaves 
with  75  per  cent,  alcohol  until  exhausted,  reserving  the  first  14  fluidounces 
and  evaporating  the  weaker  percolate  until  reduced  to  2  fluidounces,  when 
it  is  mixed  with  the  reserved  portion. 
The  Preparation  of  PUocarpina^  according  to  Mr.  Kenned^^,  is  best 
effected  by  exhausting,  in  a  glass  percolator,  powdered  2:)ilocari3us  leaves, 
with  dilute  hydrochloric  acid  (w^ater  f,5  xvi,  acid  to  i),  evaporating  in  a 
water-bath  to  the  consistence  of  a  soft  extract,  diluting  with  warm  water, 
filtering,  adding  sodium  bicarbonate  in  slight  excess,  agitating  with  chlo- 
roform and  evaporating  the  cliloroformic  solution  spontaneously ;  by 
repeating  the  treatment  with  chloroform,  the  alkaloid  may  be  obtained 
I)ure,  as  a  soft,  glutinous  mass. 
In  the  discussion  following  the  reading  of  this  j^aper,  the  recently 
reported  change  of  the  color  of  hair  to  a  dark  hue  by  the  use  of  pilocar- 
carpus  was  alluded  to,  and  Mr.  Hallberg  stated  that  he  had  observed  the 
production  of  a  green  color  by  moistening  test  paper  with  a  drop  of  an 
acid  solution  of  pilocarpina  and  exposing  the  paper  to  ammoniacal  vapors. 
An  adjournment  was  had  until  Thursday  morning  at  10  o'clock. 
Fourth  Session — Thursday  Morning^  August  25. 
The  minutes  of  the  third  meeting  and  of  the  Council  were  read  and 
approved  ;  the  latter  gave  information  of  the  election  of  .58  candidates  pre- 
viously reported  and  of  the  application  for  membershij)  of  14  gentlemen. 
Soluble  Phosphate  of  Iron  was  the  subject  of  a  paper  by  JNIr.  L.  Dohme. 
The  following  formula  will  yield  good  results :  Dissolve  pliosphate  of 
sodium  60  parts  in  w^ater  300  p.  and  add  to  it,  with  constant  stirring,  solu- 
tion of  ferric  tersulphate  70  p.  Collect  and  drain  the  precipitate  on  a  mus- 
lin strainer;  mix  it  twice  with  water  500  p.  and  drain  each  time.  Dissolve 
citric  acid  15  p.  in  water  60  p.,  add  sodium  bicarbonate  14  j^.,  heat  the  solu- 
tion on  a  water-bath,  add  the  precipitated  ferric  phosphate  and,  when  dis- 
solved, filter,  evaporate  and  scale  in  the  usual  manner. 
The  salt  is  in  transparent  green  scales,  closely  resembling  the  officinal 
pyrophosphate  of  iron,  from  wiiich  it  differs  in  yielding  a  yellow  (not  a 
white)  precipitate  on  decomposing  its  hot  solution  with  potassa,  filtering, 
neutralizing  the  filtrate  with  nitric  acid  and  adding  nitrate  of  silver.  The 
scales  contain  about  15  per  cent,  of  iron. 
By  dissol  ving  separately  in  water  citrate  of  iron  6  parts  and  phosphate  of 
sodium  7  parts,  mixing  the  solution,  evaporating  and  scaling,  a  compound 
identical  in  aj)pearance  is  obtained,  but  containing  only  12*7  per  cent,  of 
iron.  By  the  second  jDrocess  a  salt  with  15  per  cent,  of  iron  is  obtained, 
however  with  an  amount  of  phosphoric  acid  not  quite  sufficient  for  com- 
bining with  the  iron,  by  using  9  parts  of  citrate  of  iron  and  7  parts  of  phos- 
phate of  sodium. 
