556 SWALLOWS. Class II. 



ocean, and were returning from the shores of 

 Senega/, or other parts of Africa ; so that this 

 account from that most able and honest sea- 

 man, confirms the later information of M. 

 Adanson. 



The following observations made during re- 

 peated passages of the Atlantic were commu- 

 nicated by Charles Mills, Esq. of Maccles- 

 field. 



Crossed the 



Atlantic, April 



1770. 



Saw no Swallows. 



Ditto 



May 



1772. 



Ditto. 



Ditto 



July 



1773. 



Ditto. 



Ditto 



- 16 May 



1775. 



Lat. 20° 20' N. Long. 

 29° 23' W. from St, 

 Helena. Saw a swal- 

 low. 



Ditto 



- 30 June 



1778- 



Lat. 28° 5' N. Long. 20" 

 9' W. from Asce7ision. 

 Saw four swallows. 



Ditto 



- 1 July 



1778. 



Lat. 25° 37' N. Long. 

 20° 23' W. Saw a 

 swallow. 



Ditto 



- 2 July 



1778. 



Lat. 29° 41' N. Long. 

 20° 19' W. A swal- 

 low about the ship. 



Mr. White, on Michaelmas day, 17^8, had 

 the good fortune to have ocular proof of what 

 may reasonably be supposed an actual migra- 

 tion of swallows. TraveUing that morning very 



