202 Recently published Ornithological Works. 



very important species find their places in the present instal- 

 ment, such as the Knot, of* which authentic eggs arc 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 Mere 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 arc 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 

 farts, 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 doil envisager le type <lu Buceros sharpii de Elliot. 

 Par le Dr. Alph. Dubois. Bull. Sue. Zool. de France, xxxiv. p. 129 

 (1909).] 



In 1881 Dr. Dubois described and figured, under the 

 name Buceros ( Bycanistes) leucopygus, a llornbill, of which 

 two specimens had been obtained by BohndorfE in the 

 Nyam-Nyam district of Central Africa. Dr. Reichenow 

 has referred this species to li. 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 of this llornbill, which is most nearly allied to 

 B. fistulator. 



We shall be glad to know whether Mr. D. (>. Elliot agrees 

 with Dr. Dubois's views on this subject. Dr. Dubois states 



