106 Recently published Ornithological Works. 
In this paper Major Godwin-Austen gives the result of an 
examination of the type of Pellorneum tickelli, Blyth. He 
refers it to the genus Alcippe, and shows that the species is 
quite distinct from P. suhochraceum^ Swinh.^ to which it had 
been united. But on this question see Lord Tweeddale^s paper, 
Ibis, 1877, p. 451, and Major Godwin-Austen^s remarks, 
posted j p. 115. 
The note on Pomatorhinus refers to P. hypoleucus,P\y^,ySiX. 
{==P. tickelli, Hume), and to the bird described by Mr. Hume 
as P. inglesi, which seems doubtfully distinct from the true P. 
hypoleucus, of which the types are in the Calcutta Museum. 
The Chleuasicus noticed by Major Godwin-Austen, having 
a black eyebrow, not present in BlytVs type of C. ruficeps, 
is considered a variety of that species, and is described under 
the name of C. ruficeps^ var. atrosuperciliaris. The specimen 
is from Saddya, Assam. 
7. Harvie Brown on the Distribution of Birds in North 
Russia, 
[Ann. & Mag. Nat. Hist. ser. 4, vol. xix. p. 277, et vol. xx. pp. 1, 180, 
494.] 
These papers give an analysis of the distribution of Russian 
birds found north of 58° N. lat., the district being divided into 
two—a northern and a southern division. The data concerning 
the birds of the northern division are mainly derived from 
the author^s and Mr. Seebohm’s paper published in the volume 
of this Journal for 1876. For the data relating to the birds 
of the southern division a list of authorities is quoted. 
Lists of the two sets of birds are given with columns 
attached filled in with symbols denoting the rarity or reverse 
of the birds observed, and other matters relating to their 
distribution and migration; and one of the chief objects of 
the paper is to endeavour to establish a kind of geographical 
nomenclature, which shall serve to reduce observations to a 
common notation, and thus render more easy and more 
certain generalizations on geographical distribution. 
The attempt is a very laudable one; and the extreme diffi¬ 
culty of rendering the manipulation of the subject at once 
