1901. Workman. — Some Notes on the Weight of Birds' Eggs. 227 

 Common Thrush (Turdus miasms) : — 



The lightest one I found weighed 85 grains x I'I2 X 0*82. This one 

 was pretty far on in incubation, but I am not sure whether that w T ould 

 have anything to do with it ; I rather think not. 



HEDGE Sparrow [Accentor modidaris) : — 



Grains. Inch. Inch, 



(a) Weight 32 J Measurements 0-84 x 0-58 



Common Sparrow (Passer domestic us) : — 

 Clutch I. 



There is a great difference in the weights and also in the dimensions 

 of these two clutches. 



SwiFT ( Cypselus Apus) : — 



Grains. Inch. Inch, 



(a) Weight 36 Measurements 0-98 X o*66 



