Recently published Ornithological Works. 347 
connected . with one another throughout life in the Palceo- 
gnathdy while the palatines remain perfectly separated from 
one another "caudad/^ and are connected only with the 
maxillo-palatine processes " distad " ; in the Neognathcs the 
relations of these bones are of the opposite character, and 
the palate is undoubtedly undergoing ;a further change. 
The most primitive form of Avian palate is the Dromseo- 
gnathous, and not the Schizognathous. 
65. Reiser and Knotek on Bird-migration in Bosnia and 
Herzegovina. 
[Ergebnisse der omithologischen Zugsbeobachtungen in Bosnien und 
der Hercegpvina. Verfasst von Gustos Othmar Reiser und Prof. Johann 
Knotek. Wiseensch. Mitth. aus Bosnien u. Hercegovina, Bd. viii.] 
This is the report of the Committee for the observation 
of bird -migration in Bosnia and Herzegovina for the years 
1897-1900j commencing with the autumnal migration of 
1897, and ending with the vernal migration of 1900. After 
lists of the various stations and observers, the notes of the 
latter are given, arranged in systematic order. Then follows 
a resume of the details arranged in the order of the calendar, 
so that we can see what species passed on each particular day. 
In the autumnal migration of 1899, 51 species are recorded ; 
in the vernal migration of 1900, 62. 
66. Robinson and Richmond on Venezuelan Birds. 
[An annotated List of Birds collected in the Vicinity of La Guaira, 
Venezuela. By Wirt Robinson and Charles W. Richmond. Proc. U.S. 
Nat. Mus. xxiv. pp. 163-178.] 
This is an account of two collections made in 1895 and 
1900 in the vicinity of La Guaira, the seaport of Caraccas, 
by Capt. Eobinson, together with a few specimens obtained 
by Mr. Lyon, who accompanied Capt. Robinson on his 
second trip. Eighty-one species are enumerated as repre- 
sented in the series, amongst which a Wren [Micro cer cuius 
pect oralis) is described as new. Most of the others are 
well known. This is a poor result, but the avifauna of the 
coast-district of La Guaira is evidently very meagre. The 
