SEX STUDIES. XI oe 
The third of these genuine hermaphrodites is 1616, the bird 
sent by Dr. Dexter from Michigan. The anatomy of its re- 
productive organs is shown in figure 17. There is a large coiled 
oviduct and two Wolffian ducts. There is one large lobulated 
reproductive organ on the left. ‘This is larger than in any 
of the other birds studied. The surface of this organ has oocytes 
of varying sizes scattered at various places, but the whole tex- 
ture of the lobes is more solid than in a normal ovary. There 
are fourteen corpora lutea remnants. The egg record of this 
bird shows that she laid 12 eggs and nested twice, so that in 
this case, the orange spots just represent discharged instead 
Fig. H_ Section of testicular tissue from gonad of 1349, showing a group of 
lutear cells in a space between seminal tubules (X 570). 
of atretic follicles. At the anterior end of the right Wolffian 
duct is the same sort of enlargement as has been mentioned for 
Atwood’s bird. The microscopical study of the large organ 
shows it to be an active ovotestis with the testis portion in 
the more active condition when the bird was killed. ‘The main 
body of the organ is testis tubules with sperm in the lumens. 
The small organ on the right is also active testis with sperm. 
But the peripheral portion of the large organ is distinctly ovar- 
ian. It consists of thickened stroma packed with interstitial 
cells like the old Campine (fig. I). It contains oocytes of all 
sizes, small ones with only a granulosa layer to the follicle and 
large ones with nests of lutear cells in the theca interna. There 
