318 Letter's, Extracts, and Notes. [Ibis, 



Aquatic Warbler [AcrocephaJns aquaticus). Two clutches 

 of five. These do not differ from '•' schoenobanus '^ eggs. 



Icterine Warbler (Hypo/ais icterina) and Melodions 

 Warbler [Hypulais pohjglotta). Clutches of both of these 

 Tree-Warblers were exhil)ited; they did not show any 

 marked difference. The latter, however, appear to be 

 rather smaller. 



Willow - Warbler [Phylloscopiis trochilus). A series 

 showing great variation. The two forms {i.e. the spotted, 

 and closely speckled) were represented ; also two clutches 

 showing distinct and heavy zones round the large ends. 



Arctic Willow-Warbler = Eversniann's Warbler {Phyllo- 

 scopus borealis). A clutch of four from the Pasvik Biver, 

 Russian Lapland. Mr. Bunyard said he believed this to be 

 one of the only, if not the only clutch of authenticated eggs 

 in this country. They are recorded in the Bulletin of the 

 B. 0. C. for May 26, 1909, No. clii. 



Wood-Warbler [Phylloftcopus sibilatriv). A very beautiful 

 series, showing extreme and modified forms ; among the 

 former were some exceptionally heavily marked clutches. 



ChiffchafF (Phylloscopiis collybita). A series of typical 

 clutches ; also one well-authenticated clutch of six resem- 

 bling ''trochilus" eggs. 



Siberian Chiffchaff {Phylloscopiis tristis). Two clutches 

 which do not differ from " collybita " eggs. 



Yellow-browed Warbler {Phylloscopus superciliosus) . A 

 typical clutch of four from Turkestan ; markings same colour 

 as " collybila''' eggs. 



Pallas' Warbler ( Phijlloscopusproregulus) . A typical clutch 

 from N.W. Frontier, India, taken by C. H. T. Whitehead. 

 The markings are darker than in " trochihis" eggs. 



Mr. Bunyard also exhibited a series of — 



Barred Warbler (Sylvia nisoria), from Germany and 

 Sweden, and read the following short paper on them : — 



On the eggs of the Barred Waj'bler Sylvia nisoria. 

 In many works on Oology only meagre reference appears 

 to have been made to these remarkable eggs, and then 



