

and gud to the best of my belief, but by Mr. H. H. Smith a3), 2 3 
and hich I have previously referred. The theory is that it is- 

* excrementitious deposit i injurious to the juice, causing acidity, and 
“ deteriorating it rapidly. n 
They refer toa complete change of ms and imply that it has in. 
Trinidad alone given up eustoms usual elsewhere. For t reason 
ur 
5 
3! 
e 
T 
ve 

Every species finds itself surrounded by a multitude of circumstan 
which tend to diminish its increase (natural checks), and others which — 
tend to favour it. A failure of these checks alone will cause excessive 
aeo ATLAS 
j 


one locality its E mari ose né — on a circum- - 
stance which i is of little weight e is safe to assume t 
 whateve 

"£i 







along the new line open to it. I cannot agree with the theory of | 
the Trinidad Committee that the insect has caedis a taste for sweets. 



rees, or eut logs ek. the beetles enter by preference for t) 
quos of egg laying, a and ania are removed and destroyed Nith bit 








: predisposing causes to which I have rafetred are in e 
8 esl exclusive, and the most that can be said i is that 


tion elsewhere to a secondary and unimportant position. 
I do not Mt that the observations of the committee are accurate, 
but the question as to the influence of previous. borers can be easi 
ted, as follows. 
Jhoose a field which is attacked both by the larger borers and. the | 
leborus, and reckon the canes without selection till a — number, 
etse P have been examined ; the more the bette: 




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