202 
Recently published Ornithological Works. 
very important species find tlieir places in the present instal¬ 
ment, such as the Knot, of which authentic eggs are now 
figured for the first time in Britain, though eagerly sought 
for many years, the Curlew Sandpiper, of which the same 
might have been said before Mr. Popham’s journey to the 
mouth of the Yenesei, and the Solitary Sandpiper. The 
Knots'‘eggs were obtained by the Russian Polar Expedition, 
and the present plate is a reproduction from the memoir of 
that Expedition (in Russian), that of the Curlew Sandpipers' 
eggs is from the same source, while those of the Solitary 
Sandpiper are figured from North Albertan specimens. 
The excellent notes of Mr. Buturlin on the birds of the 
Russian Empire are even more interesting than usual in these 
Parts, and add greatly to our knowledge of the range of 
many forms in Asia, while the plates are excellent and give 
an adequate idea of the variation in colour of the eggs, 
though possibly those of the Knot will prove less uniform 
than might be supposed from the specimens figured, which 
were all taken in the same district. 
The woodcuts of nests are not quite of the same merit: 
some have come out badly, with the eggs almost white or 
far too dark. 
10. Dubois on Buceros sharpii. 
[Comment on doit envisager le type du Buceros sharpii de Elliot. 
Par le Dr. Alph. Dubois. Bull. Soc. Zool. de France, xxxiv. p. 129 
(1909).] 
In 1881 Dr. Dubois described and figured, under the 
name Buceros ( Bycanistes ) leucopygus , a Hornbill, of which 
two specimens had been obtained by Bohndorft in the 
Nyam-Nyam district of Central Africa. Dr. Reichenow 
has referred this species to B. sharpii of Elliot, and various 
other authors have misplaced it. M. Dubois now explains 
this at full length, and finds that leucopygus of Giebel 
(Zeitsch. ges. Nat. xlvii. p. 73, 1876) is the correct specific 
name oh’ this Hornbill, which is most nearly allied to 
B. fistulator. 
We shall be glad to know whether Mr. D. G. Elliot agrees 
with Dr. Dubois’s views on this subject. Dr. Dubois states 
