228 CONCLUDING EEMARKS. 



knowledge which may enable us to tell the name of an 

 insect, but in the knowledge of its habits, .which will 

 suggest to the practical agriculturist, in many cases, 

 how to counteract these directly by measures of hus- 

 bandry ; or indirectly, how, if we cannot get rid of the 

 attackers, we may at least carry the crop through 

 attack. 



I trust that, though the foregoing observations are 

 but a slight fragment compared to the mass of infor- 

 mation that is needed, they may be, at least to some 

 extent, useful ; and it would be the greatest gratifica- 

 tion to me if they should in any degree induce others. 

 to take up the work more competently than myself. 

 And in this view I will venture to give my own ideas 

 in the words of one of our greatest thinkers : — He who 

 would thrive in serviceable study " must, as with one 

 eye, survey the natures of things, and have the other 

 turned towards human uses." 



