O F I N S T I N C T. SCT. XVI. 16. 



now appear to us, but that they arofe in the fame 

 manner from experience and tradition, as the arts 

 of our own fpecies ; though their reafoning is from 

 fewer ideas, is bufied about fewer objects, and is 

 exerted with lefs energy. 



There are fome kinds of infects that migrate like 

 the birds "before mentioned. The locuft of warmer 

 climates has. fometimes come over to England ; it 

 is fliaped like a grafshopper, with very large wings, 

 and a body above an inch in length. It is menti- 

 oned as coming into Egypt with an eaft wind, 

 " The Lord brought an eaft wind upon the land 

 all that day and night, and in the morning the eaft 

 wind brought the locuils, and covered the face of 

 the earth, fo that the land was dark/' Exod. x. 13. 

 The emigrations of thefe infects are mentioned in 

 another part of the fcripture, <4 The locufts have 

 no kipgj yet go they forth all them in bands." 

 Prov xxx. 27. 



The accurate Mr. Adanfon, near the river Gam- 

 bia in Africa, was witnefs to the migration of thefe 

 infects. " About eight in the morning, in the 

 jnonth of February, there iuddenly aroie over our 

 heads a thick cloud., which darkened the air, and 

 deprived us of the rays of the fun. We found it 

 vras a cloud of locufts raifed about twenty or thirty 

 fathoms from the ground, and covering an extent 

 of feveral leagues ; at length a ihower of thefe in- 

 fects defcended, and after devouring every green 

 herb, while they refted, again refumed their flight. 

 This cloud was brought by a ftrong eail-wind, and 

 was all the morning in palling over the adjacent 

 country/' (Voyage to Senegal, 158)^ 



In this country the gnats are fometimes feen to 

 migrate in clouds, like the mufketoes of warmer 

 climates, and our fwarrns of bees frequently travel 

 many miles, and are faid in North America always 

 to fly towards .the fouth. The prophet Ifaiah has a 



beautifu} 



