166 PLANT AND ORGANIC CHEMISTRY 
late was detected by qualitative tests. A similar method, 
employed for its estimation in extract (i), was used to de¬ 
termine it quantitatively. 
The precipitate yielded. 
“ “ “ of ash 
Organic substance. 
,.0.305 per cent. 
- Q-I55 “ 
.0.150 
Extract (3), the Green Part oj Lea}. 
The powder used in the dilute soda maceration was washed 
with distilled water and suspended in water containing 1 per 
cent, of hydrochloric acid. Iron and calcium phosphate were 
detected in the extract. The leaves were examined under the 
microscope, and a blue color was developed by an aqueous 
solution of iodine, indicative of starch granules. Starch was 
also present in the yellow base of the leaves. 
TOTAL QUANTITATIVE RESULTS. 
(1) The 
bark of 
the root. 
(2) The 
•wood of 
the root. 
(3) Green 
part of 
leaf 
(4) Yellow 
base of 
leaf. 
1. Moisture . 
2. Total ash. 
3. Petroleum spirit extract_ 
4. Ethereal extract. 
5. Alcoholic extract. 
6. Aqueous extract. 
7. Dilute soda extract. 
Per cent. 
6.78 
17-38 
I.24 
3.16 
9- 2 5 
4- 03 
1.09 
1.30 
5 - 65 
Per cent. 
II.67 
15-75 
•55 
1.70 
14.30 
16.10 
2.41 
Per cent. 
8.II 
5-75 
2.20 
1.25 
3.80 
4-35 
Per cent. 
37.OO 
IO.63 
I.IO 
I.70 
4-30 
n -35 
8. Wash residue. 
9. Dilute acid extract. 
•30 
Total percentage. 
49.88 
62.78 
25.46 
66.08 
Total albuminoids estimated on 
powder. 
4-75 
4-74 
A 8.95 
B 10.40 
9.62 
Quantitative saponin determi- ^ 
nation on powder by A >■ 
and B J 
