412 
Assaying  Galenical-  Preparations  of  Opium. 
Am.  Jour.  Pharmv 
Aug.,lS90. 
lot  of  opium  to  powdering  and  then  work  up  this  powder  into 
liquid  preparations,  and  it  is  preferable,  considered  economically,  that 
a  slight  discrepancy  in  the  figures  be  allowed  to  appear  on  paper. 
It  should  be  mentioned  also  that  in  the  following  assays  by  the 
method  given  above  no  corrections  for  impurity  in  morphine  were 
required  ;  that  the  morphine  thus  obtained  yielded  in  all  cases  with 
Sj2 
&  a 
2 
Name  of  Prepara- 
tion and  Quantity 
Taken. 
Acetum  opii,  25  cc.  (0*314 
1-25 
1*22 
3  Fluid  extract,  25  cc. 
50  cc. 
0-314 
j  0-382  \ 
1 0-400  J 
0-700 
0-869 
o-6qq 
1-25 
i-6 
1 '4 
173 
1 '39 
rr. 
25  cc. 
0-562 
0-579 
8  Tincture,  50  cc. 
9 
Laudanum,  50  cc.  J 
o-534 
0-638 
(0-562 
l°'579 
2-24 
2-31 
ro6 
1*27 
2'24 
2*31 
Extract,  2  gram     |  0*43 
21-5 
0-364 
o-358 
lS'2 
i8- 
415  20-75 
409     I  20-45 
!  (0-365 
(\oj357_ 
CD  O 
IOO 
IOO 
100 
IOO 
? 
18-25 
Assayed  according 
to  Squibb. 
Correc- 
,  tion 
Required 
Result 
calculat'd 
to  per 
cent. 
Not  done 
5  P-  c. 
2-4  " 
3  " 
1  ^ 
I  5  16 
Not  done 
1-42  p.c.  17 
1-74  "  I  18- 
1-29   "  19 
Not  donelNot  done 
12  p.  c. 
13  " 
i-oo  p.c. 
I'22  " 
20 
21 
IOO  parts  of  lime  water  clear  and  colorless  solutions,  only  the  solution 
of  morphine  obtained  in  No.  8  having  some  color ;  also  that  the 
preparations  assayed  were  made  by  the  writer,  with  the  exception 
of  Nos.  7,  8,  9,  10  and  14,  which  had  been  made  by  others.  Where 
