40 



tion, as even the young broods, and indeed 

 winged birds of the weakest power of flight, might 

 get from Dover to Calais by less than an hour's 

 exertion on the wing*. 



OPINIONS OF WRITERS IN DIFFERENT AGES. 

 CONCLUSION. 



I SHALL conclude my observations, by taking 

 some notice of what several ancient and modern 

 writers have said respecting the swallow ; concern- 

 ing the winter retreat of which, there seems to 

 have been two different opinions among the an- 

 cients, and three among the moderns. 



The prophet Jeremiah takes notice of the 

 coming of the swallow, in common with that of 



* I noticed the swallows to be very numerous in the 

 low grounds between Dunfcerque and Calais in the early 

 part of the summer of 1815. The weather had previously 

 been cold, and we had had very little summer. 



