10 
Analytical  Notes. 
Am.  Jour.  Pharnu 
Jan.,  1889. 
lution  of  0*50  gin.  of  this  sample  in  distilled  water  was  made  alkaline 
with  sodium  hydrate,  repeatedly  agitated  with  chloroform,  the  chloro- 
form solution  evaporated  spontaneously,  and  the  crystals  thoroughly 
dried ;  the  weight  of  caffeine  was  0*427  gm.,  corresponding  to  0*466 
gm.  of  crystallized  alkaloid.    Citric  acid  was  absent. 
Some  of  the  commercial  granular  effervescing  salts  were  examined 
in  the  same  manner,  except  that  one  or  two  gm.  was  used  for  each 
assay,  which  gave  for— 
I.  1*9  perct.  dry  alkaloid,  corresponding  to  2'061  per  ct.  crystallized  alkaloid? 
II.   4-84      "         "  "  5-28     "  " 
111.    1-5      "         "  "  1-628  " 
Nos.  I.  and  II.  were  granular  citrates ;  No.  III.  contained  bro- 
mides. 
Assays  of  Milk. — The  standard  for  pure  milk,  adopted  in  different 
localities,  is  given  by  Albert  James  Lynch,  Ph.  G.,  as  follows  : 
France. 
England. 
N.  York. 
N.  Jersey. 
Mass^ 
Fat  
  270 
250 
3-0 
3-0 
3-65~ 
90 
9-0 
9'0 
9*35 
11-50 
11-50 
12-0 
12-0 
13-00 
During  the  winter  of  1887-88,  the  author  examined  a  number  of 
samples  of  milk  procured  in  the  Philadelphia  market,  with  the  follow- 
ing results: 
I.  II.  III.  IV.  V.  VI.  VII.  VIII. 
Fat                           5-21  3-63  2-61  270  3'5l  2.65  5'04  375 
Other  solids              15-60  9"26  9  01  9"22  9'08  918  10*46  9'2l 
Total  solids            20'81  12'89  11  62  11.92  12-59  11*88  15  50  12'9& 
No.  I.  was  Alderney  milk;  the  solids  consisted  of  fat  5*21,  sugar 
4-20,  casein  and  albumen  5*69,  ash  0*71.  No.  VII.  was  also  sold  as 
Alderney  milk. 
An  analysis  of  a  so-called  catarrh  cure  was  made  by  Otto  Prochaska, 
Ph.  G.  One  of  the  powders  was  white,  the  other  of  a  pink  color  ;  the 
coloring  matter  was  not  taken  up  by  alcohol,  but  was  dissolved  by  am- 
monia, with  an  intense  red  color,  which  was  destroyed  by  hydrochloric 
acid.  In  other  respects  the  two  powders  showed  no  difference.  They 
had  an  alkaline  reaction,  on  ignition  lost  28  per  cent,  without  charring, 
yielded  nothing  to  ether  or  chloroform,  and  in  aqueous  solution,  to 
which  ammonium  chloride  had  been  added,  gave,  with  ammonium  sul- 
