REPEODUCTION IN DOMESTIC FOWL 113 



Bird no. 9017 was the only one that died. An autopsy showed 

 that the ovary was in an apparently normal condition. There 

 were three absorbing yolks. The oviduct was normal, and as 

 the bird had been laying her death could not be attributed to 

 the operation. 



Bird no. 9030 was killed to secure the ovaiy. The autopsy 

 showed her to be in a very healthy condition. There were four 

 large normal yolks in the ovary and one absorbing yolk. There 

 was also an egg in the oviduct. 



Bird no. 9026, killed to secure ovary. She was in a normal 

 healthy condition. There were three large yolks in the ovary 

 and an egg in the oviduct. Ovary of fair size, but not as large 

 as in a normal bird. 



Although bird no. 9022 had not laid, she was killed. It was 

 found that the ovary was in a laying condition, containing five 

 large yolks. Several yolks were found in the body cavity sur- 

 rounded by adhesions. There was no apparent reason for this, 

 as the oviduct seemed to be normal. The funnel was in its normal 

 position and was not. injured. 



Bird no. 9018. It will be recalled that at the time of the opera- 

 tion this bird had a very bad ovary, containing several absorbing 

 yolks and yolk tumors. When killed, although she had not laid, 

 it was found that the ovary had several enlarging yolks and that 

 the oviduct was enlarging. There were no tumors or septic 

 tissue. Evidently the operation had a beneficial effect. 



Bird no. 9023 was the only one whose ovary showed no apparent 

 growth. Both the ovary and oviduct were in a healthy condition, 

 but small. 



The two days preceding the day on which bird no. 9019 was 

 killed she layed. Her ovary was found to contain two large 

 normal yolks and one absorbing yolk. 



Bird no. 9025 did not lay; when killed the ovary was found to 

 be healthy. It was enlarging, as was also the oviduct. 



Counts were made in- the usual way of a) visible oocytes on 

 the portion of ovary removed at the original operation and, b) 

 visible oocytes on the regenerated ovary at the death of the bird. 



The results of these counts together with other pertinent data 

 are given in tables 4 and 5. 



