41 8 G.V/LLUS. 



drowned in the -African fea, where they caufed fuch a 

 llench that the putrifying bodies of many thoufand mea 

 could not have produced effluvia fo peftilential. 



The eaflern borders of the Ruffian empire, are fubjecl- 

 ed fometimes to the awful vifitations of this inf«£t : That 

 which happened in i6go, which extended from RuJ/ia o^ 

 ver a great part of Poland and Lithuania^ was fingularly 

 deftruclive. In fome places the ioculls were feen lying 

 dead, heaped upon each otlier four feet deep ; in others 

 they covered the urface like a black cloth ; the trees 

 were feen bending beneath their weiglit, and the damage 

 which the inhabitants fuftained was beyond computation» 



In Barhary their numbers are alfo formidable, and 

 their viSts more tre(juent ; During the year 1714, a 

 traveller from Britain, remarkable for the accuracy of his 

 obfervations, witneffed the havoc they committed in that 

 ill fated country *. Towards the end of March they be- 

 gan to appear with a foutherly wind : During the fucceed- 

 ing months, their numbers continued to increafe fo pro- 

 digioufly, that duriug the heat of the day they rofe in 

 fwarms fo large as to darken the fun. In the middle of 

 May they began to retire, for the purpofe of depofiting 

 their eggs in the drier plains of the interior country. 



About tlie middle of fummer the young, already ripe 

 for devaflation, made another incuiTion, in feveral bodies 

 of a vail; extent 5 although then in the form of worms 

 they crawled forward, climbed the trees, walls and hou- 

 fes, devouring every plant in their way : It was in vain 

 that the inhabitants dug trenches through their fields 



and 



Dr. Shaw in his travels through Africa-, 



