101 [Vol. xxxiii. 



arrived in Scotland on passage from the New World. The 

 Suffolk specimens one cannot be sure of, but they certainly 

 could not be picked out from a series of T. a. pacifica. 



c?. Fair Is. 









Middle toe 



Bill. 



Wing. 



Tarsus. 



and claw. 



35 



119 



25-5 



22 



41 



117 



26-5 



23 



" My conclusions are based on the following measurements 

 of birds at various seasons : — 



"Tringa alpina. 



Bill tf 25-33 mm. ; av. 29-3 (33 specimens) 



2 28-37-25 mm. ; av. 33'3 (33 „ ) 



Wing tf 104-119 mm. ; av. 112 (37 „ ) 



$ 107-1 22-5 mm.; av. 115 (30 „ ) 



Tarsus S 21-5-25-5 mm. ; av. 23-4 (23 „ ) 



$ 23-27 mm. ; av. 25 (24 „ ) 



Middle toe with claw. <S 19-22-25 ram. ; av. 21-2(11 „ ) 



$ 19-23-5 mm. ; av. 22-2 (16 „ ) 

 Difference in length hetween middle toe with claw and tarsus 1-4 mm. 



"■ Tringa alpina pacifica. 



Bill cS 3T25-35-75 mm. ; av. 33-25 (11 specimens) 



$34-42 mm.; av. 37-64(14 „ ) 



Wing 3 118-120-5 mm. ; av. 119-4 (9 „ ) 



$ 119-130 mm. ; av. 122-7 (14 „ ) 



Tarsus J 25-26, one 27'5 mm. ; av. 25-7 (11 „ ) 



2 25-27-5, one 29 mm. ; av. 26-85(14 „ ) 



Middle toe with claw. S 21-5-24 mm. ; av. 22-50(11 „ ) 



2 22-25 mm. ; av. 23-27 (13 „ ) 

 Difference in length between tarsus and middle toe with 

 claw 1-5-5 mm. ; av. 3 - 4 (24 specimens)." 



Dr. C, B. Ticehurst also exhibited four female examples 

 of Barrow's Goldeu-Eye and the Common Golden-Eye 

 (Clangula islandica and C. ciangula), and made the following 

 remarks: — 



" In examining a series of Golden-Eyes I was looking out 

 for some character by which the female of Barrow's Golden- 

 Eye could be differentiated from females of the Common 



