276 On the Avifauna of Franz Josef Land. 



grand total are mere stragglers. Six species, the occurrence 

 of which is extremely doubtful, have been recorded for the 

 archipelago ; these have been excluded from our calculations 

 for reasons already stated under the particular species. 



Just as we were going to press, we received from 

 Dr. Koettlitz, the geologist to the Jackson-Harmsworth 

 Expedition, a communication containing much valuable 

 information. Where absolutely necessary, the facts have 

 been incorporated under the respective species to which they 

 refer. But the useful data on the arrival and departure of 

 the various birds which came under the Doctor^s notice, 

 prior to Mr. Bruce's advent in Franz Josef Land, are given 

 below. We desire to express our acknowledgments to 

 Dr. Koettlitz for his valuable and much-appreciated con- 

 tribution. 



Dates of Arrival. 



1895. 1896. 



Mergulus alle Feb. 25 Feb. 27 



TIria mandti „ 25 „ 24 



„ hruennichi April 4 Mar. 26 



Pagophila eburnea „ 16 April 6 



Fulmarus glacialis » 21 „ 8 



Larus glauciis May 6 ,,4 



Plectrophenax nivalis April 20 „ 22 



Hissa tridactyla June 7 „ 26 



Tringa [? striata] „ 13 May 30 



Bemicla hrenta „ 13 June 2 



Stercorarius crepidatus „ 17 „ 12 



Sterna macrura „ 17 „ 18 



Somateria mollissima „ 24 May 28 



Strepsilas interpres .... „ 27 



Calcarius lapponicus .... „ 28 



Nyctea scandiaca .... „ 26 



Dates of Departure. 



1895. 



Colymbus septentrionaiis Aug. 11 



Stercorarius crepidatus and young Sept. 4 



Uria hruennichi „ 14 



Sterna macrura v 17 



Fulmarus glacialis „ 18 



