106 VEGETABLE PARASITES AND EPIPHYTES 



Experiment field No. 2 : 15 acres in area, containing 

 2,320 trees, forty years of age, which were lopped in 

 November 1905 : 



Yield of cocoa. 



On the same estate as Experiment fields Nos. 1 and 2 

 were 187J acres which contained 34,496 fruiting trees. 

 These were not lopped, and the crops which they yielded 

 during the same years are given below for comparison 

 with those of the experiment fields. 



Yield of cocoa. 



The crop from the pruned trees was doubled in the 

 first three years, while that of the first four years was 

 nearly three times as great as that from the untreated 

 trees, although no crop was obtained from the pruned 

 trees during the first year following the pruning. 



The indurated fruits produced in the experiment fields 

 was 5 per cent, and 2J per cent, in 1906 and 1907 re- 

 spectively, while those produced by the untreated trees 

 amounted to 50 per cent, of the ripe fruits harvested in 

 April and May. 



At another estate where lopping experiments were 



