496 
n. • 
MAENO’ 
peated with roots of the same tree and nearly of the same: diameter 
on the 27th April (/?), when the leaves were developed. The 
analysis shows that a decrease of proteids and non-nitrogenous 
extract had taken place on the one hand, while on.the other hand 
an increase of starch ; fat and fibre had remained nearly constant 
while lecithin disappeared almost completely. (1) In connection 
with the decrease of proteids, an increase of amido-nitfogen and 
especially of asparagine nitrogen is of interest. 
Also the bark of the branches was subjected to analysis at 
two different periods. 
The sample (oo was collected on the first of March before 
the leaf buds opened and the sample (ß) after the development 
of the leaves on the 27th April. 
Here we observe not only a decrease ot proteids (with in¬ 
crease of asparagine) but also a decrease of fat, lecithin, and total 
carbohydrate. 
The result is seen from the following table : 
Root. Branch. 
(a) 
iß) 
(a) 
iß) 
Water . 
. .67.01% 
70.38% 
53 - 2 % 
73 - 88 % 
Dry matter. 
• .32.99 
29 62 
46.8O 
26.12 
Organic matter. 
. -96.43 
96.78 
94 . IO 
94.02 
Ash . 
•• 3-57 
3.22 
5.90 
5.98 
Fibre . 
. .3I.I3O 
32.42O 
3577O 
46.5OO 
Fat ./.. 
- . 6.7OO 
6.3OO 
7.290 
6.7OO 
Lecithin . 
. . O.999 
trace 
I.O76 
trace 
Total carbohydrate . 
. .15.040 
26.500 
I9.8OO 
17.200 
Sugars and dextrin . 
. . 6.6OO 
10.500 
13.300 
9.070 
Starch . 
. . 8.44O 
16.000 
6.500 
8.130 
Crude protein. 
•• 9-450 
7.187 
10.312 
9.956 
Total nitrogen . 
.. 1.512 
1.150 
1.650 
1-593 
Albuminoid nitrogen. 
. . o.8q8 
0-394 
1.294 
I.O4O 
Amido-nitrogen. 
. . 0.094 
0.100 
0.005 
0.003 
Asparagine nitrogen. 
.. 0.520 
0.656 
0.351 
0.550 
Non-nitrogenous extract (e 
X- 
cept carbohydrate). 
• . 33 -in 
27.592 
26.827 
19.644 
(1) I may here draw attention 
to the recent 
observations 
of Stokiasa 
upon the 
formation of lecithin in the leaves in daylight and its disappearance in darkness. 
