Recently published Ornithological Works. 197 
obtaining thoroughly identified eggs and young in down 
is indefinitely postponed; for although two fine adults (one of 
them now in Mr. SeebohnPs possession) appear to have been 
obtained last summer near Disco, in Greenland, further 
information is wanted as to the egg said to have been taken 
with them. At p. 200 of this interesting report, of which 
we have only given a brief abstract, is a list of a few birds 
observed at Plover Bay, Eastern Siberia. 
45. Mens bier on the Posthumous Works of Sever tz off. 
[CEuvres Posthumes de M. le Dr. N. A. Sewertzow, publiees par la 
Societe Imperiale des Naturalistes de Moscou, redigees par M. M. Menz- 
bier. I. Zwei neu oder mangelhaft bekannte russische Jagdfalken. 
II. Etudes sur les variations d’age des Aquilines palearctiques et leur 
valeur taxon omique. Nouv. Mem. Soc. Imp. d. Nat. d. Moscon, tome 
xv. livr. 3 (1885).] 
In the former of these two articles the group of the Great 
Northern Falcons is discussed by the late Professor whose 
name we retain in the orthography familiar to our readers. 
The single specimen from Bering* Island, on which is based 
the Hierofalco grebnitzkii , sp. n., to judge by the pretty figure 
and description, does not seem to depart very materially 
from the form which is usually known to European orni¬ 
thologists as Falco islandus ; and so thinks Dr. Stejneger, 
who himself obtained four examples of the Bering Island 
Grey Falcon, besides a fifth received from Mr. Grebnitzky, 
though, in accordance with the view before announced (Auk, 
1885, p. 187), Dr. Stejneger names it F. rusticolus, con¬ 
sidering F. islandus to be that which in this quarter of the 
globe has usually been called F. candicans or grcenlandicus. 
The second supposed new species, Hierofalco uralensis, has 
already been noticed in these pages (Ibis, 1883, p. 105). 
We should doubt its being more than a local form of F. gyr- 
* Mr. Menzbier continues the cacography u Behring,” notwithstanding 
proof that the navigator’s name was Bering, as may be seen in Mr. Elliot’s 
f Eur Seals of Alaska ’ and other works of authority. But it is probably 
“ Behring ” auctorum plurimorum, and those who choose to fo.low a 
multitude to do evil will continue to misspell it. 
