36o 
The  History  of  some  Drugs. 
Am.  Jour.  Pharm. 
Aug.,  1876. 
(the  residue  tested  for  adulterations)  ;  the  dry  residue  from  the  alcohol 
dissolved  in  acidulated  (sulphuric  acid)  water,  filtering  if  necessary,  and 
the  narcotina  removed  by  washing  the  acid  solution  with  ether.  After 
addition  of  excess  of  barium  carbonate,  the  solution  is  now  extracted 
with  benzene  (several  portions),  the  residue  from  evaporation  of  the 
benzene  being  weighed  as  emetia  (confirming  by  dissolving  in  acid  water 
and  titrating  with  potassium  mercuric  iodide).  The  solution  exhausted 
with  benzene  is  washed  with  amylic  alcohol  (several  portions),  and  the 
residue  from  evaporation  of  the  amylic  alcohol  weighed  as  morphia 
(confirming  volumetrically  by  potassium  mercuric  iodide  after  dissolv- 
ing in  acidulated  water).  The  ether  and  the  amylic  alcohol  should  be 
water-washed. 
Dover's  powder. 
phia. 
No. 
I,  0'20 
per  cent. 
emetia, 
and 
1*03  per  cent 
cc 
2,  0'l6 
cc 
cc 
cc 
I '00 
cc 
cc 
3,  0-23 
cc 
cc 
cc 
i*o6 
cc 
cc 
4,-  0*20 
cc 
cc 
cc 
1-03 
cc 
cc 
5,  0-13 
cc 
cc 
cc 
°'93 
cc 
cc 
6,  0-13 
cc 
cc 
cc 
1 -oo 
cc 
cc 
7,  0-26 
cc 
cc 
cc 
1*06 
cc 
cc 
8,  0-23 
cc 
cc 
cc 
0*96 
cc 
Averag 
;e,  0-19 
cc 
IC 
cc 
1 -oi 
cc 
U.  S.  P.  standard, 
1*00 
cc 
The  average  of 
0*19  per 
cent,  in 
Dover's 
Powder 
cent,  emetia  in  ipecacuanha. 
All  the  samples  of  Dover's  Powder  were  examined  for  adulterations, 
organic  and  inorganic,  but  none  were  found. 
CONTRIBUTIONS  TOWARDS  THE  HISTORY  OF  SOME  DRUGS.1 
BY   PROFESSOR  FLUCKIGER. 
In  writing  our  cc  Pharmacographia,"  my  late  friend  Hanbury  and 
myself  have  endeavored  to  trace  the  history  of  each  substance  as  far 
back  as  possible,  and  to  ascertain  the  date  of  the  introduction  into 
pharmacy  of  drugs — especially  of  those  furnished  by  foreign  countries. 
1  Abstracted  from  the  author's 
Halle,  1876,  p.  96. 
Documente  zur  Geschichte  der  Pharmacie. 
