36 



May 31st .... Bar. 29-83 in. T. 53° F. Wind S.W., force 5. 

 Weather, b. 

 Centre of depression had passed N. of Scotland. 

 Strong S.W. winds over our area. Weather fair 

 generally and the fog had cleared, but showers 

 reported from many places. Temp, lower ; under 

 55° F. everywhere. 



Note. — In the maps which illustrate the migrations of! 

 the following species an attempt has been made to trace 

 their course by separating and grouping the different move- 

 ments, but it must be understood that this grouping is to a 

 certain extent artificial and is only done for the sake of 

 clearness. The successive immigrations are indicated on 

 the maps by the following signs : — 



First immigration thus : — 2 



Second 



55 



© 



Third 



55 



m 



Fourth 



>5 



- <8> 



Fifth 



55 



© 



Sixth 



>■> 



5 /mFS 



