THE ANIMAL KINGDOM. 



351 



exlmle pestilential vapours; mortality succeeds to ruin, and 

 men perish by thousands. 



These frightful emigrations have been observed in all 

 epochs of history. Moses teaches us that at the voice of 

 the Eternal, locusts covered all the land of Eg3^pt, devoured 

 the crops, and even invaded the palaces of the Pharaohs. 



Wo. Migrating Loc-ast—Grryllus migratorius. 



Pliny says that in Africa some countries have even been 

 depopulated by their ravages. The alarm they occasion 

 drew from St. Jerome these words, "What is there stronger 

 and more terrible than locusts ? All human industry can- 

 not withstand them. God alone regulates their march." 



Modern histoiy has had only too often to register these 

 disastrous visitations. One of them, Avhich obscaired the 

 sun like a hurricane, checked the pa,ssage of Charles XII. 's 



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