51 



alarming accounts, " That almost every 

 " one ignorant of their history, were under 

 " the greatest apprehensions concerning 

 " them, so much so that even prayers were 

 " offered in some churches to deliver us 

 *' from the apprehended approaching ca- 

 " lamity." 



" The caterpillar of the brown-tail moth 

 *' is not so limited a feeder as some, nor 

 *' so general a one as others. Its whole 

 *' economy however shews it is designed to 

 " feed on trees and shrubs on Avhich alone 

 *• it is ever found. These afford it a sup- 

 " port for its web, which is an habitation 

 ** in many respects essential to its exist- 

 " ence, and with which herbaceous plants 

 " of lower growth cannot supply it." 



The following facts will serve to corro- 

 borate what is here advanced. They are 

 found on the 



Hawthorn most plentifully, 



Oak the same. 



Elm very plentifully, 



Most fruit trees the same. 



Blackthorn plentifully, 



Rose trees the same, 

 D 2 



