Recently published Ornithological Works. 347 



ceedings of the Biological Society of Washington/ diagnoses 

 of five more " new species " of birds discovered during his 

 recent expedition to Kamtschatka and the Commander Islands. 

 These are entitled Pica camtschatica, Corvus grebnitskii, 

 Alauda blakistoni, Dendrocopus immaculatus, and Lagopus 

 ridgivayi. We never like to condemn species before seeing 

 specimens of them ; but, judging from the diagnoses and from 

 what we know of the variations of such forms as Pica 

 caudata and Corvus corax, we should be inclined to doubt 

 whether some of these supposed species would be generally 

 accepted. 



67. Swinburne' s List of the Birds inhabiting the Islands of 

 Sula Sgeir. 



[Notes on the Islands of Sula Sgeir, or North Barra and North Eona, 

 with a List of the Birds inhabiting them. By John Swinburne. Proc. 

 R. Physical Soc. Edinb. viii. p. 51.] 



The writer gives an interesting epitome of the results of the 

 visits of his predecessors (from 1594 to the present date) to these 

 remote islands, the latter of which has been uninhabited since 

 1844, except during a few days at the annual shearing of the 

 sheep which are pastured there. The principal interest of 

 North Rona consists in the fact that the Fork-tailed or 

 Leach's Petrel [Thalassidroma leucorrhoa) breeds there in 

 considerable numbers. Eighteen species of birds were noted 

 altogether. 



68. Vieillofs 'Analyse' (reprint). 



[Vieillot's Analyse d'une nouvelle Ornithologie Elementaire. Edited 

 by Howard Saunders, F.L.S., P\Z.S. Loudon : 1883.] 



This necessary work to all ornithologists has been reprinted 

 by the Willughby Society, and issued to subscribers for 1883. 

 Saunders, who has edited the reprint, gives in his preface a 

 short account of Vieillot's life and labours. 



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