86 



TRANSACTIONS OF THE ILLI>TOIS 



aftenvard.s. As stated in the article referred to, the practical difficulties in the way of 

 carrying out the system of subduing fruit-boring insects by hog-power are : 1st, The 

 necessity of liaving all the orchard land under a separate fence, which of course in 

 many cases involves a considerable extra outlay for fencing materials. 2d, The neces- 

 sity of giving up a practice, which is conceded by the most intelligent fruit-growers 

 to be otherwise objectionable, namely, growing other crops, such as small gi-ain, corn, 

 or small fruits, between the rows of trees in bearing fruit orchards. 3d, The necessity 

 of giving up the fashionable theory of low-headed trees; for otherwise, if apple and 

 peach trees are allowed to brancli out like a currant bush from tlie very root, any hogs 

 which range among them will manifestly be able to help themselves, not only to the 

 wormy windfalls that lie on the ground, but also to the sound growing fruit upon all 

 the lowermost bouglis. 



The jarring process may be carried on in various ways, accordant with the extent of 

 the orchard or the character of the trees to be jarred — always bearing in mind that a 

 sudden jar, rather than a severe shake or knock, is necessary. There is no more 

 thorough and expeditious way, however, than by means of Dr. Hull's Cuculio-catcher. 

 Every member of this Society is probably familiar with the appearance of this 

 machine; but, believing that a description of it has never been published in your 

 Transactions, I will give one in the Doctor's own words: 



[Fig. 2.] 





