N. 0. VERBENACEiE. 
985 
Prof. I). D. Kanga, m. a., of Elphinstone College, Bombay, 
who has analysed this plant, reports as follows : — 
The flowers were collected in the months of August and September from 
places in the neighbourhood of the Science Research Institute, Bangalore, 
dried in air and distilled with steam. 
The leaves were also locally collected in the month of January 1912, pow- 
dered and extracted with warm alcohol for the determination of the consti- 
tuents ; the alcoholic extract was steam-distilled, when an oil came over 
along with a little free volatile acid. 28 28 grams of the fresh flowers lost 
22'2 grams, of water on drying at UO'O. Hence moisture 78 per cent. 
The yield of the oil from the air-dried flowers was 0 077, while that from 
the leaves was 0'2 per cent. 
The following table gives the physical properties and some 
chemical constants of the oils : — 
Oil from the 
dried flowers. 
Oil from the 
fresh flowers. 
| 
Oil from the 
leaves. 
Oil from the 
leaves of the 
South American 
plant, according 
to Messrs. 
Scliimmel and 
Co's. Report, 
Oct. 1909. 
Colour ... 
Yellow 
Yellow 
Yellow 
Pale-yellow 
Odour ... 
Powerful, per- 
sistent and 
pleasant, re- 
minding of 
sage. 
Powerful, per- 
sistent and 
pleasant re- 
minding of 
sage. 
Powerful, per- 
sistent and 
pleasant, re- 
minding of 
sage. 
Pleasant, re- 
minding of 
sage. 
Yield ... 
0'07 "/. by 
weight. 
0‘2 °4 by weigh t 
Varying great- 
ly according to 
age. One yield 
was 0'07'A and 
another 0 246% 
by volume. 
Specific ... 
gravity. 
n2«>915 
D— 0 02114 
24 
d ^°0*9132 
4 
Refractive 
Index 
Optical 
Rotation. 
n^ 6 ' 5 ” 1-4987. 
^ Hg^grecn 
+23-0° 
«^ 6 ' 5 15031 
.70°, 1 48933 
“d 
n + i-9o° 
30° 1.4913 
n l> 
[a] J®+ 11*5“ 
Saponifica- 
tion Value 
10 
Acetyl 
value 
43-6 
" 
When subjected to fractional distillation under a pressure 
varying from 45 to 55mm., the following fractions were collected 
124 
