Senile Changes in Leaves of Certain Plants 301 



TABLE 6 (concluded) 



Number of leaf 



Length 



(centimeters) 



Breadth 



(centimeters) 



Area 



(square 



centimeters) 



Weight 



(grams) 



Area of 

 islets 



(square 

 millimeters) 



5. 

 6. 



7. 



8. 



9. 



10. 



Vine 1, 7.6 centimeters in diameter, 28 annual rings (concluded) 



14 

 16 

 16 

 15 

 13 

 13 



16 

 16 

 19 

 17 

 13 

 15 



158 

 178 

 208 

 175 

 118 

 130 



2.3 

 2.8 

 4.0 

 3.2 

 1.8 

 3.2 



Vine 2, 2 centimeters in diameter, 6 annual rings 



0.2171 

 0.1843 

 0.2028 

 0.2048 

 0.1941 

 0.2035 



1 



13 



15 



138 



2.3 



0.3980 



2 



14 



14 



138 



2.0 



0.3716 



3 



13 



15 



137 



2.2 



0.3613 



4 



11 



12 



92 



1.5 



0.3581 



5 



13 

 12 



14 

 11 



124 



88 



2.0 

 1.3 



0.3637 



6 



0.3696 



7 



12 



14 



118 



1.9 



0.3677 



8 



10 

 10 



11 

 11 



77 

 74 



1.3 

 1.2 



0.3691 



9 



0.3580 



10 



13 



13 



118 



1.8 



0.3670 



Average area of islets for vine with 28 rings . 2040 square millimeter 



Average area of islets for vine with 6 rings . 3684 square miUimeter 



TABLE 7. Area of Vein Islets in Leaves of Vines 3 and 4 



Number of leaf 



Length 

 (centimeters) 



Breadth 

 (centimeters) 



Area 



(square 



centimeters) 



Weight 

 (grams) 



Area of 



islets 



(square 



millimeters) 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 

 9 

 10 



Vine 3, 0.7 centimeter in diameter, 3 annual rings 



15 

 14 

 17 

 15 

 15 

 15 

 14 

 14 

 15 

 14 



17 



190 



2.3 



0.5277 



13 



127 



1.5 



0.5151 



18 



210 



2.2 



0.5100 



16 



162 



1.6 



0.5180 



16 



162 



1.7 



0,5151 



15 



157 



1.6 



0.5288 



16 



152 



1.8 



0.5264 



13 



147 



1.6 



0.5001 



17 



173 



2.0 



0.5120 



15 



147 



1.5 



0.5010 



