REPRODUCTION IN THE DOMESTIC FOWL. 



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given in the first line of this table is 47.0 cm. This is just twice 

 the length of the next shorter oviduct, that of hen 222 E. The 

 oviduct is however smaller than in hens actively engaged in egg 

 production in the middle of a laying period. It compares most 

 nearly in size with the oviduct in hens which have ceased laying 

 from 5 to 1 6 days before examination, or to those with 4 to 6 

 large yolks on the ovary. In order that this comparison may 

 be readily made Table II. is introduced. This table is compiled 

 from records in the archives of the laboratory and gives certain 

 data in regard to normal hens having oviducts between 44.5 cm. 

 and 50.5 cm. long, /. t\, of approximately the same length as 

 that of the hermaphrodite hen No. 16. The table includes the 

 following data : (a) length of oviduct in cm. ; (//) the number of 

 yolks i cm. or more in diameter on the ovary at the time of 

 autopsy; (c] the number of days elapsed since the last egg was 

 laid. In case the bird never laid the sign oo is used to denote 



this fact. 



TABLE II. 



Data from Normal Hens on Oviducts of Same Size as that of Hermaphrodite Bird. 



From the table it is apparent that the oviduct in the hermaph- 

 rodite hen was in essentially the same condition as that of a 

 normal hen which has recently completed an egg-laying period 

 (clutch). 



Internally the oviduct of the hermaphrodite was differentiated 

 into the regions characteristic of the normal oviduct. The fun- 

 nel walls were thin and transparent. Grandular ridges appeared 



