252 



OSCAR RIDDLE 



TABLE 11 

 Clutches of greatest size disparity laid by hybrids of St. alba and T. orientalis 



1 It is probable that this weight was 2.050 instead of 1.050 as recorded. The usual 

 'underscoring' of yolks of abnormal size for the bird or species was here omitted at 

 the time of weighing. 



