SCIENTIFIC COMMITTEE, JUNE 28. 



xlvii 



although even the attacks of mycelium, or root fungi, proceeding from 

 old buried stumps or wood would hardly cause such a sudden collapse. 

 There are no traces of insect depredations. 



From the specimens sent no theory can be formed of the cause of the 

 failure, and consequently no remedy can be suggested. 



The local cause can only be ascertained on the spot, for it must be 

 some sudden and local cause to produce such a sudden failure in such 

 healthy bushes, while producing such vigorous fruit and no organic 

 disease. 



