344 



GEORGE W. BARTELMEZ. 



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Both no. 5 and her mate were 

 hatched in December, 1910, and 

 mated 4^2 months later. The 

 first egg was laid May 5, 1911, 

 the last October 3, 1914, and 

 every egg she laid was studied. 

 Unfortunately her career was 

 cut short by the development of 

 adhesions of the infundibulum 

 which eventually closed the 

 ostium tubae, and at autopsy the 

 body cavity was found full of 

 yolk. This gradually developing 

 abnormality of the oviduct is to 

 be correlated no doubt with the 

 exceptionally wide range of var- 

 iability found in her eggs. There 

 were more inversions too (see p. 

 350) than in any other case. 



The table shows that no. 5 was 

 the most prolific of the group, 

 not one of her eggs was infertile 

 and less than 4 per cent, deviated 

 from the normal. The double- 

 yolked egg belongs to Class I. 

 of M. R. Curtis (1915) as both 

 yolks had all membranes in 

 common. It is worth noting that 

 as usual in such eggs the double 

 yolk was oriented with reference 

 to its longest axis while the in- 

 dividual long axes had been 

 obliterated by the fusion. One 

 embryo cut the chalazal axis at 

 5, the other at 130. This is 



