LIMIT TO CULTIVATION 



97 



June the foliage was lighter colored, the fruit did 

 not show the plumpness that characterized the va- 

 riety, and two weeks later it began to drop from 

 the lower limbs, little remaining at gathering time 

 except that which was very immature. Notwith- 

 standing the increased wood growth, these trees did 

 not produce so well — nor at all until very late in 

 the summer, some maturing after the experiment 

 ceased. There is a point in cultivation, then, be- 

 yond which it is dangerous to go, and fining the 

 ground too constantly causes its fertility to dete- 

 riorate more rapidly. 



