ON THE 



INJURY 



DOME TO TBI 



FOLIAGE OF THE OAKS, 



in the NEIGHBOURHOOD OF MANCHESTER, in the SPRING of 1827. 



BY JOHN BLACKWALL, F. L. S. 



(Head January 11th, 1838.) 



INSECTS, though diminutive in size, and 

 insignificant in appearance, when associated to- 

 gether, in large numbers, frequently become 

 exceedingly formidable and destructive. A strik- 

 ing illustration of this fact is supplied by the 

 appalling devastation which is sometimes occa- 

 sioned by extensive bodies of locusts; a circum- 

 stance thus emphatically described in the bold 

 figurative language of the prophet Joel, ii. 2— 6. 

 " A day of darkness and of gloominess ; a day 

 of clouds and of thick darkness ; as the morn- 

 ing spread upon the mountains : a great people 

 and a strong ; there hath not been ever the like, 

 neither shall be any more after it, even to the 



u2 



