163 Mr. J. H. Gurney on 



Wing, 

 in. 



From Gulg'un Shah, Eastern Turkes- 

 tan, collected by Dr. Scully (im- 

 mature) 11 •25 



From Eastern Nan-a, Sind, collected 



by Mr. Doig 1150 



From Etawah, collected by Mr. An- 

 derson (Norwich Museum)* 11'50 



From Ahmedabad, Guzerat, collected 

 by Mr. Doio^, and presented by him 

 to the Norwich Mu.seum 11-50 5-90 1-80 1-90 



The subjoined measurements I hav^e taken from specimens 

 in the British Museum, which I believe to be males of 

 F. babylonicus, but of which the sex was not recorded by the 

 collectors : — 



Middle 



Wing. Tail. Tarsus, toe, s. u. 

 in. in. in. iu. 



From Kurachi, collected by Col. 



Butler (immature in change) .... 10-90 6-85 1-80 1-80 

 From Arung, near Raipur, Central 



Provinces, collected by Mr. Blewitt 



(immature in change) 11 -05 



From Delhi, collected by Mr. Hume 



(immature in change) 11-15 



From Delhi, collected by Mr. Hume 



(immature in change) 11-20 



From Eastern Narra, Sind, collected 



by Mr. Doig (adult) 11-25 



From Guzerat, Sind, collected by Mr. 



Doig (adult) 11-35 



I must also refer to a specimen which has much perplexed 

 me, and which is contained in the collection presented by- 

 Mr. Hume to the British Museum. This Falcon was con- 

 sidered by Mr. Hume to be a female of F. barbarus; it was 

 obtained by Mr. F. R. Blewitt in the Nursingpoor district of 



* As to some discrepancy between Mr. Anderson's measurements of 

 his specimen and my own, see 'The Ibis,' 1882, p. 311 (note). 



