Du Mez—The Galenical Oleoresins. 
1003 
Table 24 —Saponification values of commercial oleoresins. 
Sample 
No. 
Date. 
Observer. 
Source. 
Saponifica¬ 
tion value 
1904 
Germany ... 
204.4 
2. 
234.2 
1.. 
1911 
Evans Sons, Lesclier & 
Webb ... 
Not given . 
195.2 (D 
2 
220 4 
3. 
U 
248.8 
1 
197.0 0) 
2..' . 
44 
200.0 U) 
3. 
207.0 (D 
4 
“ 
208.0 l 1 ) 
5.. 
210.0 (*i 
6 
“ 
. “ 
221.0 (i) 
1 
3.912 
Southall Bros. & Barclay. 
195.1 (i) 
2 
44 
204.6 (i) 
3’..... . 
4t 41 
235.4 
4 
44 44 
44 
241.0 
5’. . 
44 4 4 
256.3 
6 
44 
“ 
258.2 
1 ‘ 
1913 
DuMez . 
England . 
195.7 (D 
2. 
Manila, P. I . 
200.3 (2) 
3. 
England . 
202.4 O) 
4' 
United States . 
206.7 (2) 
5. 
England . 
208.7 (i) 
6’ 
Germany . 
214.6 I 2 ) 
7. 
225.5 
8"'. 
“ 
United States . 
240.5 
1". 
FT a, prison Sir. SpI f. 
Germany . 
205.0 ( 3 ) 
2' ** 
.4 
213.0 
3' ** 
4‘ 
218.0 
4'. 
“ 
223.0 
5. 
tfc 
225.0 
6 . 
44 
“ 
237.0 
1......... 
“ 
SouthaU Bros. & Barclay. 
Not given. ..... 
225.1 
2......... 
263.1 
1. 
1915 
4 4 4 4 
“ 
206.5 
3. 
4 4 4 4 
236.0 
3. 
“ 
4 4 4 4 
“ 
250.0 
4 . 
4 4 4 4 
253.1 
5 . 
*44 4 4 
•* 
254.6 
1......... 
1916 
DuMez . 
Stearns & Co ... 
190.0 ( 2 ) 
2 . 
Lilly & Co .. 
211.4 ( 2 ) 
3 . . 
Squibb & Sons ... 
283.2 ( 4 ) 
4......... 
“ 
Parke, Davis & Co . 
249.1 
1 Adulterated with castor oil. 
2 Low in crude fllicin content. 
3 Referred to as suspicious. 
4 Contained ether. 
Iodine value: Observations made in the laboratory indicate 
that the oleoresin should have an iodine value of not less than 
99, corresponding to at least 20 per cent, of crude filicin. Pre¬ 
parations giving a lower value than this were found to be low 
in crude filicin content due to adulteration with castor oil or 
to the presence of unevaporated solvent. On the other hand, 
it was observed that a high iodine value does not always signify 
a high filicin content, e. g. iodine values of 106.3 and 108.1 
were obtained for preparations containing only 16.0 and 16.27 
per cent, of crude filicin, respectively. As the latter were 
