The Mammalia and Birds of Franz Josef Land. Ill 



comparison between the ornis of Spitzbergen and Novaya 

 Zemlya and that of Franz Josef Land : — 



It only remains to remark, that of the twenty-two species 

 which form the avifauna of Franz Josef Land, only ten have 

 been found breeding (though several more — probably five — 

 undoubtedly nest there), and that several of the birds in 

 the grand total are mere stragglers. Six species have been 

 recorded for the archipelago, the occurrence of which is 

 extremely doubtful; but these have been excluded from 

 our calculations, for reasons already stated under the 

 particular species. 



We have received from Dr Koettlitz, the geologist to the 

 Jackson- Harms worth Expedition, a communication contain- 

 ing much useful data concerning the arrival and departure 

 of the various birds prior to Mr Bruce's advent in Franz 

 Joseph Land. These are given below. We desire to express 

 our acknowledgments to Dr Koettlitz for his valuable and 

 much-appreciated contribution. 



Dates of Arrival. 



1895. 1896. 



Mergulus alh, . . . Feb. 25. Feb. 27. 



Uria majidti, . . „ 25. ,,24. 



Uria bruennichi, . . April 4. Mar. 26. 



Pagophila ehurnea, . . >, 16. April 6. 



