314 PROPORTIONS 



7. Horsk Chestnut (.3?a- cuius hippocastanuTn) . 



Sup wood near Sap wood near Heart wood. Wood of limbs Bark of limba. Outside bark Inside bark 



ihe bark. the hearl. of the trunk of the trunk. 



Water, 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 ^Ssculus hippocastanuin [same tree), at different stages. 



1. April 26. Limbs taken about two inches in diameter. Buds just bursting. 



Bark. Wood. 



Water 51-00 56-13 



Dry matter - - - ■- - 49-00 43-87 



Ash 5-00 0-51 



Ash calculated on the dry matter - 10-204 1-162 S. 



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 the trees were in full bloom ; and the middle leaflet of equally 

 vigorous leaves from each tree was selected for analysis. 



No. 1. The middle leaflet weighed 57*5 grains, and gave 



Actual quantities Per centum 



Water 41-19 71 633 



Dry matter .... - 16-31 28-367 



Ash 1-33 2-313 



Ash calculated on the dry matter - 8-157 S. 



No. 2. The middle leaflet weighed 77-25 groins, and gave 



Actual quantities Per centum. 



Water 55-40 71 715 



Dry matter 21-75 28-285 



Ash 1-58 2-045 



Ash calculated on the dry matter - 7-264 S. 



The lenves of No. 2 are much larger (the leaflets being wider and longer) than those of 

 No. 1. 



