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Vol. x1.] 126 
various species and subspecies. On the whole, the range of 
variation is fairly constant, if I may use such a term, but 
some subspecies affect certain variations more than others, 
and in all the gradation in size between the larger and 
smaller races is quite well marked. 
Mr. Percy F. Bunyarp exhibited the following eggs 
from his collection :— 
RAVEN (Corvus corax). A representative series showing 
types and varieties, among them a clutch of seven from 
Ireland, and a very uncommon clutch of five from aes 
finely marked with longitudinal lines. 
CaRRION-Crow (Corvus corone). A remarkably beautiful 
series showing great variation ; a clutch of four very blue 
eggs from Suffolk almost without markings and a very 
dark clutch of five from the Continent, in which the 
ground-colour was almost obscured, are worthy of special 
‘Mention. 
Hoopep Crow (Corvus corax). A carefully selected 
series from Ireland in which the type and varieties were 
well represented, among them a clutch of six resembling 
monedula eggs except that the ground-colour was of a 
darker shade. 
JACKDAW (Corvus monedula). A well-represented series 
with remarkable varieties, among them a clutch of six 
bluish-white eggs with very large blotches; a clutch of 
three from the Continent showing a distinctly erythristic 
tendency with large very black-brown markings confined 
to the large end in one egg and in the others at the 
small ends ; examples almost without markings »were 
conspicuous. 
Rook (Corvus frugilegus). A comprehensive series from 
which repetition had been carefully eliminated; those of 
special interest were a clutch of five very heavily pigmented 
eggs from Shropshire, and a clutch of five, four of which 
were heavily capped with pigment, the fifth egg having 
mostly underlying markings confined to the extreme small 
end. 
