312 Letters, Extracts , and Notes. [Ibis, 



eggs (Thames). Also a fine nest of Nightingale, together 

 with nest and eggs of Northern Nightingale (Denmark) for 

 comparison. 



Among the clutches exhibited by Mr. Read without nests, 

 the following call for special mention : — Common White- 

 throat, line red eggs and a pink clutch ; Sardinian 

 Warbler, red and green phases ; Grasshopper-Warbler, 

 large eggs heavily zoned at larger end (Northumberland) ; 

 Nightingale, a set of green eggs from Corsica as large as 

 those of the Northern Nightingale ; Willow-Warbler, a very 

 heavily marked set from Kent. 



Mr. Read also showed a curious double nest of the Great 

 Tit (Somerset) and another of the same species which he 

 had found built in the open in a hawthorn bush. The 

 bird was sitting on the nest, which contained tiiree eggs. 



Mr. Edgah Chance exhibited the Avonderful series of 

 Cuckoo's eg^s, taken by himself in the seasons of 1918 and 

 1919. Full particulars of these will be found in ' British 

 Birds' Magazine (January 1919 and September 1919). 

 The series is quite unique in its completeness, and probably 

 forms one of the most important additions to our knowledge 

 of Cuckoo problems that has ever been made. 



Mr. F. G. LuPTON exhibited : — 



(«) A set of four erythristic Lapwing's eggs, taken near 

 Settle, Yorkshire. Ground-colour very rich, but markings 

 normal. 



(h) A clutch of four Lapwing's eggs, of the very rare 

 cyanic form. Mr. Lupton remarked that this was the 

 only set he had ever obtained from among over 450,000 

 Lapwing's eggs inspected during 24 years, and that it 

 appears to be rarer than the erythristic phase. Taken near 

 Settle. 



(c) A clutch of six Swallow, taken in 1875 by the late 

 Thomas Altham of Lancashire. The eggs are smaller and 

 rounder than usual, with extremely large blotches of two 

 shades. 



(d) A set of two Nightjar, from the late Frank Norgate's 



