40 



My surprise however was soon lessened, 

 when on examining the roots of the apple- 

 trees I found there existed a progeny, 

 which in all probability served every 

 season to renew the stock, and I therefoi'e 

 turned my attention to this point which 

 led me to the following expedient. I 

 took ofifi during the frost, the branches of 

 apple trees on which there had been great 

 abundance of the insect, and found, by the 

 use of the magnifier, that the eggs were 

 discoloured and incapable, to all appear- 

 ance, of producing young. At the same 

 time I searched the roots of the same 

 trees, and there I found not only eggs but 

 Jiving insects, and had them moving 

 under the lens in a few minutes after be- 

 ing taken into a warm room. 



In order to illustrate this fact I had a 

 drawing made of the roots with the insect 

 attached to it, as I have considered it of 

 considerable moment to give as perfect an 

 account of it as my labours have afforded 

 opportunity. I have had it engraved, and 

 by reference to the plates the following 

 states of this destructive insect will be 

 seen: 



