184 INDIRECT INJURIES CAUSED BY INSECTS. 



what is remarkable, though sometimes one larva of each is 

 found in the same acorn, yet two of either kind are never to 

 be met with together.' The beetle is probably the Curculio 

 {Balaninus) glandium of Mr. Marsham, and is nearly related 

 to the species whose grub inhabits the nut. 



Having now conducted you round, and exhibited to you 

 the melancholy proofs of the universal dominion of insects 

 over our vegetable treasures while growing or endued with 

 the principle of vitality, in their separate departments, I 

 must next introduce you to a pest worse than all put 

 together, which indiscriminately attacks and destroys every 

 vegetable substance that the earth produces, and which, 

 wherever it prevails, carries famine, pestilence, and death in 

 its train. Happily for this country — and we cannot be too 

 thankful for the privilege — we know this scourge of nations 

 only by report. The name of Locust, which has been such a 

 sound of horror in other countries, here only suggests an 

 object of interesting inquiry. But the ravages of locusts are 

 so copious a theme that they merit to be considered in a 

 separate letter. 



I am, &c. 



1 Reaum. ii. 502. 



