Recently published Ornithological Works. 289 



Mr. Stone gives us an account of the birds collected by- 

 Mr. F. C. Baker and himself during a recent expedition into 

 Yucatan and Southern Mexico^ which was conducted by- 

 Prof. Heilprin of Philadelphia. Yucatan was visited in 

 February and March, in the dry season, and examples of 96 

 species were obtained. Most of these are well known, but 

 some useful field-notes are given. Icterus gularis, not men- 

 tioned in Boucard^s list of Gaumer's birds (P. Z. S. 1883, 

 p. 434), was found "abundant." "It is strange that the 

 species (of Icterus) described by Boucard as abundant were 

 not seen at all by us.^"" 



The Mexican portion of the series was obtained partly near 

 Orizaba and partly at Chalchicomula, at a height of 4000 

 feet above that city. Mr. Stone remarks, "The difference 

 between the birds of this vicinity and of the town of Orizaba, 

 4000 feet below, was at once apparent. Only three species 

 were seen at both places, the Turkey Vulture, Lincoln^s 

 Sparrow, and the Sparrow Hawk [Falco sparverius) , and only 

 the last of these was at all abundant at Chalchicomula. Nearly 

 all the species seen belong to more northern genera, and the 

 absence of such birds as the Great-tailed Grackle, Black 

 Vulture, and Red-eyed Cowbird was especially noticeable." 



A list is given of 33 species belonging to this high Mexican 

 district, and field-notes are added. In Western Mexico 

 Mr. Baker procured a few other specimens, amongst which 

 were a pair of Chamaospiza torquata [cf. Biol. Centr.-Am., 

 Aves, i. p. 399), the habits of which are stated to be those of 

 Pipilo. 



58. Studer on the Birds obtained during the Voyage of the 



' Gazelle.' 



[Die Forschimgsreise S.M.S. 'Gazelle' in den Jaliren 1874 bis 1876 

 imter Kommando des Kapitan zur See Freiherrn von Scbleinitz, heraus- 

 gegeben von dem Hydrograpliisclien Amt des Reiclis-Marine-Amts. III. 

 Thoil. Zoologie und Geologie. Mit 33 Tafeln. 4to. Berlin : 1889.] 



A handsome volume, prepared by Dr. Th. Studer of Berne, 

 gives us a summary of the researches in zoology and geology 

 made during the voyage of the German S.S. 'Gazelle/ which 



