314 
PROPORTIONS 
7. Horse Chestnut (jEscuIus hippocastanum). 
Water, 
Sap wood near 
the bark. 
Sap wood near 
the heart. 
Heart wood. 
Wood of limbs. 
Bark of limbs. Outside bark 
of the trunk. 
Inside bark 
of the trunk. 
50-00 
47.50 
58-05 
23-70 
36-25 
17-35 
44-35 
Dry - 
50-00 
52-50 
41-95 
76-30 
63-75 
83-65 
55-65 
Ash 
0*35 
0-62 
1-50 
1-15 
3-50 
10-00 
5-00 
Limbs of the vEsculus hippocastanum (same tree ), at different stages. 
1. April 26. Limbs taken about two inches in diameter. Buds just bursting. 
Water ..... 
_ 
Bark. 
51-00 
Wood. 
56 • 13 
Dry matter .... 
- 
49-00 
43-87 
Ash ..... 
- 
5-00 
0-51 
Ash calculated on the dry matter 
- 
10-204 
1-162 
2. May 29. Limbs about two inches in diameter. Flowers just fallen. 
Wood. Bark. 
Water ..... 
48-03 
53-50 
Dry matter .... 
51-97 
46-50 
Ash . 
0-58 
4-29 
Ash calculated on the dry matter 
1-116 
9-226 
The two following analyses exhibit a difference in the amount of ash and dry matter in 
the leaves of two Horse Chestnut trees growing on the same soil, and subjected as nearly 
as they could well be to the same conditions. There was also much difference in the ap¬ 
pearance of the bark, flowers, and shape of the leaves in the two trees. The leaves were 
gathered May 18th, when Aie trees were in full bloom; and the middle leaflet of equally 
vigorous leaves from each tree was selected for analysis. 
1. The middle leaflet weighed 57-5 grains, 
and gave 
- 
Actual quantities. 
Water ..... 
41-19 
Dry matter .... 
16-31 
Ash ------ 
1-33 
Ash calculated on the dry matter 
- 
Per centum. 
71-633 
28-367 
2-313 
8-157 S. 
No. 2. The middle leaflet weighed 77"25 grains, and gave 
Actual quantities. Per centum. 
Water .... 
Dry matter - 
Ash. 
Ash calculated on the dry matter 
The leaves of No. 2 are much larger (the lea 
55-40 71-715 
21-75 28-285 
1-58 2-045 
7-264 S. 
flets being wider and longer) than those of 
No. 1. 
