397 
Letters, Announcements, fyc. 
Tjabuk must be in Europe. It must be a little-known place; 
for none of the maps that I have seen show it. In Mr. 
Dresser’s f Birds of Europe/ part 38, and under the head of 
Hypolais caligata, I find the place referred to as being in the 
South-eastern Ural. 
I think the species ought to be added to the European list. 
An addition may be also made to the Asiatic list ; for I 
have seen an example of Acrocephalus turdoides obtained by 
Capt. Henry St. John, B.N., in China. 
The length of its wing is 3’65. The wing of A. orient alls 
is generally about 3*25 inches long. 
The form of the wing of the Chinese example above re¬ 
ferred to agrees perfectly with that of an Astracan example 
I have, the second primary being almost as long as the third 
(w r hich is the longest) and much longer than the fourth. In 
the allied Eastern species A . stentorius (A. brunnescens ), 
the second primary is about the 'same length as the fifth, and 
is often between the fifth and sixth. 
It would be impossible to separate undersized examples of 
A. turdoides from large ones of A. orientalis by appearance 
only. There may be differences of voice, song, nest, and eggs; 
but of these I have not any knowledge. f 
The nest of A. stent orius is a deep cup, substantially built of 
grass and long leaves of water-plants, and is firmly attached 
to a few reeds, like the nest of A. streperus. It is generally 
placed about eighteen inches above the surface of the water. 
The eggs are very similar to those of its European ally. It 
breeds plentifully around the lakes of Cashmere, where I found 
several nests. I did not see any other Beed-Warbler about 
these lakes. 
Yours &c., 
W. Edwin Brooks. 
29 May, 1877. 
Sirs, —Having recently had an opportunity of inspecting, 
in the Gardens of the Zoological Society, the interesting Fal¬ 
con taken off Socotra (mentioned antea, p. 149) I trouble you 
with the following remarks respecting it. 
SER. iv.—VOL. i. 2 e 
