Recenth/ published Ornithological Works. 413 



eggs of Alca impennis. There can be little doubt, therefore, 

 that an egg of the Gare-fovvl had been dropped here in 

 former days. 



In conclusion we may say that Dr. Hartlaub's whole essay 

 is of the most interesting nature to ornithologists and merits 

 their careful study. The text and the numerous footnotes 

 alike are crammed throughout with curious information upon 

 rare birds. 



81. Loomis on Culifornian IVater-Birds. 



[California AVater-Birds. By Leverett M. Loomis. Proc. Cal. Acad. 

 Sc. ser. 2, vol. v. pp. 179-i'21 (1895), and vol. vi. pp. 1-30 (Feb. 2 1st, 

 1896).] 



The former of these interesting papers contains an account 

 of the author's observations on the water-birds which fre- 

 quent the coast of Monterey from the middle of June to the 

 end of August. Migration southward had begun by June 

 14th, and subsequently increased, as might be expected, 

 but subject to considerable fluctuations. The Long-tailed 

 Skua was obtained on August 23rd, apparently for the first 

 time in Califoinia. The second paper relates to observations 

 made in mid-winter, Avhen a great feature was the migration 

 — by thousands — of Black-vented Shearwaters {Puffinns 

 opisthomelas) on their way, as indicated by the condition of 

 their organs of reproduction, to some breeding-place, which 

 Mr. Loomis thinks may be in the temperate zone of the 

 southern hemisphere. Both papers are illustrated by maps. 

 Our Old-World Lurus camis, now said to be common on 

 that coast in winter, had already been reported («ith a note 

 of interrogation) from Southern California by Mr. Henshaw. 



82. Lorenz-Liburvau on a neio Dendrocolaptine Bird. 



[Ueber einen vermuthlich nouen Dendrocolaptiden. Von Dr. Ludwig 

 von Lorenz-Liburnau. Verb. k.-k. zool.-bot. Gesell. Wien, xlv. p. 363, 

 and Ann. k.-k. naliirb. Hofmuseums, xi. Heft i.] 



Dr. L. V. Lorenz-Liburnau bases a new species of the 

 Dendrocolaptine genus Dendrexetastes on a specimen obtained 

 on June 30th, 1888, near Para^ in Brazil, and proposes to 



2(; 2 



