

■i !' 



^ 



/if 



/'A<i^o 6(;] 



[/;. ./. .s/,t//a, /■'j;.M..s. 



WHY A LEAF FALLS. 



In this photograph the point of junction has been more highly magnified to show with greater distinctness the lighter coloured 

 cof\c cells packed closely together. As autumn advances these cells will stretch right across the connecting space till they reach 

 the base of next year's bud. when the leaf will fall off. 



