Letters, Announcements, fyc. 
255 
Gentlemen, —I send you the following note on Dr. B. 
Radakoff's recently published Hand-Atlas*, believing that it 
will not be uninteresting to the readers of f The Ibis 3 :— 
About a week ago I was informed of the issue of the above 
work ; and I received the first seven sheets to day. These in¬ 
clude two title-pages, introduction (one page), four sheets of 
the Atlas, being four maps of Europe, Asia, and Africa on 
Mercator's projection, the whole elephant-folio size, and open¬ 
ing at the end. The land is shown edged with blue; and all 
the principal towns, rivers, mountains, &c. are shown. Upon 
these four maps there are marked the respective geographical 
ranges of Tinnunculus alaudarius, Tetrao bonasia, Tetrao 
tetrix, and TJpupa epops, in red, thus :— 
(1) Zur Bezeichnung der Gegenden im denen die Art 
nistet . • 1111111111111111 
(2) Zur Bezeichnung der Gegenden welche die Art bloss 
durelizieht.= -=-= 
(3) Zur Bezeichnung der Gegenden in denen die Art nur 
iiberwintert. xxxx 
(4) Zur Bezeichnung der Gegenden in denen man mit 
Wahrscheinlichkeit das Vorhandensein einer Art voraussetzen 
kann, obgleich dafiir keine literarischen Beweise existiren. 
The work is to be continued, I understand, upon the same 
plan, giving a map for each of the species, and is issued by 
A. Lang of Moscow. As a valuable addition to our know¬ 
ledge of geographical distribution, this exhaustive work should 
be in the library of every student of the subject. 
My object in sending you this notice is not only that I 
may draw general attention to it, but also to point out that 
a series of papers, upon which I have myself been engaged, 
seem to me to supplement in an admirable way this larger and 
more elaborate work; and the symbols used by me, if added 
to those upon the maps, could be easily utilized to show the 
more minute particulars of distribution in minor areas upon 
a larger scale. I would in this connexion refer you to the 
following papers by me :— 
* Hand-Atlas der geogr. Ausbreitung der im europaiscken Rnssland 
listenden Vogel, znsammengestellt von Dr. B. Radakoff (H. Berghaus’s 
\tlas der Thier-Geographie). First 7 sheets. Moscow: 1876. 
