22 Aves, 
AVES. 
Newton, Edward, & Clark, J. W. [Transit of Venus Expedition. 
On the Osteology of the Solitaire {^Pezophaps f>olitaria,Qmel.). Phil. 
Trans, clxviii. pp. 438-451, pis. xliv.-l. 
A valuable supplement to Alfred & Edward Newton’s Memoir of this 
species. [Cf. Zool. Rec. vi. p. 91.] [Dididoi.l 
Nicholson, F. On a Collection of Birds made by the late Mr. E. O, 
Buxton in Western Java. Ibis, 1879, pp. 1G4-171. 
Thirty-nine species were obtained in the coast opposite Lampong, and 
one is distinguished by the name of Zosterops huxtoni. [DicoeidcB.'] 
Oates, E. W. Notes on the Nidification of some Burmese Birds. 
No. iii. Str. Feath. viii. pp. 1G4-168. [_Cf. Zool. Bee. xiv. Ave-<i, 
p. 16 ; XV. AveSj p. 20.] 
Oesterreicu, Rudolph von, Homeyer, E. F., & Brehm, A. E. 
Zwolf Friihliugstage an den mittleren Donau. J. f. O. 1879, 
pp. 1-83. 
Ornithologische Beobachtuugen in den Auwaldern der Donau bei 
Wien. Tom. cit. pp. 97-129. 
These narratives of the expeditions and researches of the Crown 
Prince Rudolph of Austria, communicate those scientific results which 
would otherwise be sealed to the public, as the Crown Prince’s “ Funf- 
zelm Tage auf der Donau ” was never published, but reserved for private 
circulation. Extracts from the latter work are also published by A. von 
Pelzeln. 
Osborne, S. D. On the Coloration of Eggs. Bull. Nutt. Orn. Club, iv. 
pp. 23-26. 
On experiments tending to show that in eggs selected from all the 
orders the variations in colour are mainly due to the thickness of the 
deposits of one and the same pigment, and the amount of calcareous 
matter overlying it. 
Ottley, W. See Bucorvus ahyssinicus [Bucerotidoi]. 
OuSTALET, E. Catalogue methodique des Oiseaux recueilfis par M. 
Marche dans son voyage sur TOgoou^, avec description d’especes nou- 
velles. N. Arch. Mus. (2) ii. pp. 53-148, pis. v. & vi. 
The species obtained in the Gaboon by M. Marche and his qompanions 
amounted to 107, to which are added 41 species already existing in the 
Paris Museum, which have certainly come from that district, and 4 of which 
the origin is less sure ; making a total of 162. Three species are described 
as new : Dendropicus sharpii \_Picidoi\, Dicrurus sharpii \_DicruridcB\ An- 
dropadus marchii [^Pycnonotidee]^ and 3 species {^Pycnonotidee^ Laniidce, 
Anatidce'] are figured. 
. Note sur une petite collection d’oiseaux provenant des lies Loss 
(Afrique occidentale), Tom. cit. pp. 149-156, pi. vii. 
From the islands opposite Sierra Leone, 15 species are enumerated, 
amongst them the recently described Coccycolius iris [Sturnidee'], which 
is now figured. 
