EXPLANATION OF FIGURES. 
All figures were drawn with the aid of a camera lucida. They have been 
reduced two-thirds. 
Fies. 1-16.—Outline drawings showing the various types of anomalies found 
in the genital organs of young toads killed soon after completing their meta- 
morphosis. C.A, corpora adiposa; B.O, Bidder’s organ; T, testis; O, ovary ; 
N, kidney. 26. 
Kia. 17.—Longitudinal section through the enlargement in the lower part of 
the left ovary which is outlined in Fig. 10. > 250. 
Fic. 18.—Transverse section through the enlargement in the lower part of 
the right ovary which is outlined in Fig. 2. 250. 
Fic. 19.—Section of an ovum found in the rudimentary ovary of an her- 
maphroditic toad. This cell has all of the characteristics of the young ova 
normally present in Bidder’s organ. Y.N, yollk-nuclei. >< 1000. 
Fie. 20.—Section of the nucleus of a rudimentary ovum which is just 
beginning to degenerate. < 333. 
Fic. 21.—A later stage in the degeneration of the nucleus of a rudimentary 
ovum. 333. 
Fic. 22.—-Section of the nucleus of a young odcyte which appears normal. 
>< 1000. 
Fie. 23.—Part of a section of a large ovum showing vacuolization of the 
cytoplasm. 3383. P 
Fig. 24.—Part of a section of a large ovum having two distinct layers of 
yolk spherules in the cytoplasm. > 338. 
Fic. 25.—Section of the nucleus of a large ovum which appears normal. 
< 333. 
i it 
