On the Migration of Birds. 



169 



2. — The Questions. 

 Hìrundo rustica. The attillimi of ii 



Assembled 1he._ 



The bulk disappeared . . The 



The last swallow zvas seen The 

 Ih 



Jh 

 Jh . 



th 



County 

 District 



Signature 



3.— Day-Map oe March 15th. 



4.— Day-Map oe March 20th. 



