392 Recently published Ornithological Works. 
61. Radde’s ‘ Museum Caucasicum. 3 
[Die Sammlungen des Kaukasisehen Museums, im Vereine mit Special- 
Gelehrten bearbeitet und herausgegeben von Dr. Gustav Radde. Band I. 
Zoologie, von Dr. Gustav Radde. Tiflis, 1899.] 
This is the first of a series of six quarto volumes, which 
the accomplished Director of the Caucasian Museum at Tiflis 
proposes to devote to the illustration and explanation of the 
rich collections under his charge. The present volume 
—printed in Russian with a German context—contains 
an account of the zoological specimens in the Museum, which 
are, of course, mostly from the Caucasus and its environs, 
though many are from other localities. 
Some 150 pages are devoted to the birds, of which there 
are stated to be 4206 specimens in the Museum, besides eggs 
and nests. These are referred to 498 species. The sexes 
and exact localities are given in a general list; after which 
follows a series of short notes on various species, chiefly those 
from different parts of the Caucasus. Some of these are in 
correction or augmentation of the remarks in the author's 
f Ornis Caucasica/ and deserve careful study, for Dr. Radde 
is known as a f lumper 3 rather than a ( splitter 3 of species, 
and it is well to hear both sides of the question :—see, for 
instance, his remarks on the modifications of Cinclus aqua - 
ticuSj Ruticilla mesoleuca, Garrulus glandarius , and other 
species, in the Caucasus. 
62. Rothschild and Beddard on the Genus Apteryx. 
[The Genus Apteryx. By the Hon. Walter Rothschild, Ph.D. With 
a Chapter on the Anatomy of the Kiwis, by Frank Beddard. Nov. Zool. 
vi. p. 361.] 
In this important memoir Mr. Rothschild has endeavoured 
to give us the results of his great experience in the examina¬ 
tion of specimens of the genus Apteryx , both alive and dead, 
especially of those belonging to the unrivalled collection of 
these birds which he has succeeded in bringing together. 
Though we may regret that some of these results are not of 
a rather more positive character, there can be no question 
that Mr. Rothschild’s account of the species which he is able 
