Recently pnbUshed Ornithological Works. 5G5 



and D. Setli-Sraith ; while the following articles deal with 

 separate species of birds : ]Mr. F. E. Blaauw on Bernicla 

 meJanoptera (pl.)> Miss Dorien Smitli on Tadorna variefjata, 

 Mr. T. H. Newman on Colnmha leuconota (col. pi.), Mr. II. 

 Willford on Turacus corythaix and Oriolas trailli (pi.), 

 Mr. P. Galloway on Dendrocopus minor, j\Ir. C. Maxwell on 

 Cinnyris asiaticus, Miss K. Carrey on Loxia curvirostra, 

 Miss A. Hutchinson onBucorax cafer. Articles on practical 

 Bird-keeping treat of Doves (Miss Alderson) and Parrakeets 

 (Mr. Seth-Smith). 



Q7. Dubois on new Birds from Congoland. 



[Decriptions d'oiseaux uouveaiix du Congo Beige, par le Dr. Alph. 

 Dubois. Eev. Fran^. d'Oraithologie. No. 22. Fevrier, 1911. J 



Ur. Dubois describes three new birds from the Belgian 

 Congo under the names Dendromus kasaicus, Cinnyris chloro- 

 pygius var. pauwelsi, and Zosterops virens var. reichenowi. 

 He does not state where the specimens upon which these 

 names are based are to be found, but we presume that they 

 are in the Congo Museum at Tervueren. 



68. Eckhardt on the Migration of Birds. 



[Die geograpliischen Grundlagen des Vogelzug Problems. Von 

 Dr. Wilh. Eckhardt, Aachen. Petermann's Mitteihmgen, 6G. Band, 

 1910, p. 241.] 



Ornithology, like other branches of Biology, is closely 

 connected with Geography. We are therefore pleased to find 

 an ornithological article in one of the leading Geographical 

 Journals. Dr. Eckhardt, who has previously written on 

 Bird-migration, gives us here a general sketch of this 

 important subject, but does not appear to have pushed its 

 elucidation much farther, nor to be very well acquainted 

 with some of the recent practical work in connection with 

 it. We cannot believe that the rise and fall of the barometer 

 has so much to do with migration, as some writers have 

 supposed. 



si:r. IX. — VOL. V. 2 q 



