38 PROCEEDINGS OF THE 



especially as Bome species arrived at all these points named on 

 the same daj'. 



Compared with the spring migration of 1901 with its cool 

 weather and almost constant rain, the movement of 1902 was 

 decidedly earlier. Taking fifteen of the most familiar species 

 recorded at four stations in the Philadelphia district last year, 

 and comparing with the 1902 dates, we find them earlier in every 

 instance but one. 



One averaged two days earlier, two averaged four days earlier, 

 one five days earlier, four six days earlier, two seven days earlier, 

 three eight days earlier, and one nine days earlier, while the 

 Phoebe averaged seven days later than in 1901. While these 

 are averages, the fourteen earlier birds were actually earlier at 

 each station in 1902, while the Phoebe was later at each station. 



